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Contact Form + Validator: Have to Click "Submit" Button Twice

fadedrunes

By fadedrunes
in PHP Coding Help

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Go to solution Solved by ginerjm,

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fadedrunes Newbie

fadedrunes

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Hello all,

 

I am an absolute beginner when it comes to PHP and Javascript but wanted a simple contact form for my website. I used the PHP code from one source and the Javascript validator code from another source and all is working fine except for one very annoying bug: I have to press the Submit button twice in order for the form to send the email. I've found that if the validator is already triggered, however, I only need to press the button once for it to submit. I have scoured the internet for a solution to this problem but am realizing this must be a hangup in the particular code I'm using and I'm just not experienced enough to troubleshoot it.

 

A little help is greatly appreciated. Thank you for your time.

 

Here's the client side code (truncated to only show relevant parts):

<html>
<head>
<script src="js/gen_validatorv4.js" type="text/javascript"></script> 
</head>
 
<body>
<form method="post" action="contact.php" name="contactform">
    <div class="row collapse-at-2 half">
<div class="6u">
<input name="name" placeholder="Name" type="text" />
</div>
<div class="6u">
<input name="email" placeholder="Email" type="text" />
</div>
</div>
<div class="row half">
<div class="12u">
<textarea name="message" placeholder="Message"></textarea>
</div>
</div>
<div class="row half">
<div class="12u">
<ul class="actions">
<li><input type="submit" value="Send Message" /></li>
<li><input type="reset" value="Clear form" /></li>
</ul>
</div>
</div>
</form>
<script type="text/javascript">
var myformValidator = new Validator("contactform");
myformValidator.addValidation("name","req",
        "Please provide your name.");
myformValidator.addValidation("email","req",
        "Please provide your email.");
myformValidator.addValidation("message","req",
        "Please enter your message.");
myformValidator.addValidation("email","email",
        "Please enter a valid email address.");
</script>
</body>
</html>
 
Here's the Javascript validator code:


 
function Validator(frmname)
{
    this.validate_on_killfocus = false;
    this.formobj = document.forms[frmname];
    if (!this.formobj)
    {
        alert("Error: couldnot get Form object " + frmname);
        return;
    }
    if (this.formobj.onsubmit)
    {
        this.formobj.old_onsubmit = this.formobj.onsubmit;
        this.formobj.onsubmit = null;
    }
    else
    {
        this.formobj.old_onsubmit = null;
    }
    this.formobj._sfm_form_name = frmname;
 
    this.formobj.onsubmit = form_submit_handler;
    this.addValidation = add_validation;
 
    this.formobj.addnlvalidations = new Array();
    this.addAddnlValidationFunction = add_addnl_vfunction;
    this.formobj.runAddnlValidations = run_addnl_validations;
    this.setAddnlValidationFunction = set_addnl_vfunction;//for backward compatibility
 
 
    this.clearAllValidations = clear_all_validations;
    this.focus_disable_validations = false;
 
    document.error_disp_handler = new sfm_ErrorDisplayHandler();
 
    this.EnableOnPageErrorDisplay = validator_enable_OPED;
    this.EnableOnPageErrorDisplaySingleBox = validator_enable_OPED_SB;
 
    this.show_errors_together = false;
    this.EnableMsgsTogether = sfm_enable_show_msgs_together;
    document.set_focus_onerror = true;
    this.EnableFocusOnError = sfm_validator_enable_focus;
 
    this.formobj.error_display_loc = 'right';
    this.SetMessageDisplayPos = sfm_validator_message_disp_pos;
 
    this.formobj.DisableValidations = sfm_disable_validations;
    this.formobj.validatorobj = this;
}
 
 
function sfm_validator_enable_focus(enable)
{
    document.set_focus_onerror = enable;
}
 
function add_addnl_vfunction()
{
    var proc =
    {
    };
    proc.func = arguments[0];
    proc.arguments = [];
 
    for (var i = 1; i < arguments.length; i++)
    {
        proc.arguments.push(arguments[i]);
    }
    this.formobj.addnlvalidations.push(proc);
}
 
function set_addnl_vfunction(functionname)
{
    if(functionname.constructor == String)
    {
        alert("Pass the function name like this: validator.setAddnlValidationFunction(DoCustomValidation)\n "+
            "rather than passing the function name as string");
        return;
    }
    this.addAddnlValidationFunction(functionname);
}
 
function run_addnl_validations()
{
    var ret = true;
    for (var f = 0; f < this.addnlvalidations.length; f++)
    {
        var proc = this.addnlvalidations[f];
        var args = proc.arguments || [];
        if (!proc.func.apply(null, args))
        {
            ret = false;
        }
    }
    return ret;
}
 
function sfm_set_focus(objInput)
{
    if (document.set_focus_onerror)
    {
        if (!objInput.disabled && objInput.type != 'hidden')
        {
            objInput.focus();
        }
    }
}
 
function sfm_disable_validations()
{
    if (this.old_onsubmit)
    {
        this.onsubmit = this.old_onsubmit;
    }
    else
    {
        this.onsubmit = null;
    }
}
 
function sfm_enable_show_msgs_together()
{
    this.show_errors_together = true;
    this.formobj.show_errors_together = true;
}
 
function sfm_validator_message_disp_pos(pos)
{
    this.formobj.error_display_loc = pos;
}
 
function clear_all_validations()
{
    for (var itr = 0; itr < this.formobj.elements.length; itr++)
    {
        this.formobj.elements[itr].validationset = null;
    }
}
 
function form_submit_handler()
{
    var bRet = true;
    document.error_disp_handler.clear_msgs();
    for (var itr = 0; itr < this.elements.length; itr++)
    {
        if (this.elements[itr].validationset && !this.elements[itr].validationset.validate())
        {
            bRet = false;
        }
        if (!bRet && !this.show_errors_together)
        {
            break;
        }
    }
 
    if (this.show_errors_together || bRet && !this.show_errors_together)
    {
        if (!this.runAddnlValidations())
        {
            bRet = false;
        }
    }
    if (!bRet)
    {
        document.error_disp_handler.FinalShowMsg();
        return false;
    }
    return true;
}
 
function add_validation(itemname, descriptor, errstr)
{
    var condition = null;
    if (arguments.length > 3)
    {
        condition = arguments[3];
    }
    if (!this.formobj)
    {
        alert("Error: The form object is not set properly");
        return;
    } //if
    var itemobj = this.formobj[itemname];
 
    if (itemobj.length && isNaN(itemobj.selectedIndex))
    //for radio button; don't do for 'select' item
    {
        itemobj = itemobj[0];
    }
    if (!itemobj)
    {
        alert("Error: Couldnot get the input object named: " + itemname);
        return;
    }
    if (true == this.validate_on_killfocus)
    {
        itemobj.onblur = handle_item_on_killfocus;
    }
    if (!itemobj.validationset)
    {
        itemobj.validationset = new ValidationSet(itemobj, this.show_errors_together);
    }
    itemobj.validationset.add(descriptor, errstr, condition);
    itemobj.validatorobj = this;
}
 
function handle_item_on_killfocus()
{
    if (this.validatorobj.focus_disable_validations == true)
    {
        /*  
        To avoid repeated looping message boxes
        */
        this.validatorobj.focus_disable_validations = false;
        return false;
    }
 
    if (null != this.validationset)
    {
        document.error_disp_handler.clear_msgs();
        if (false == this.validationset.validate())
        {
            document.error_disp_handler.FinalShowMsg();
            return false;
        }
    }
}
 
function validator_enable_OPED()
{
    document.error_disp_handler.EnableOnPageDisplay(false);
}
 
function validator_enable_OPED_SB()
{
    document.error_disp_handler.EnableOnPageDisplay(true);
}
 
function sfm_ErrorDisplayHandler()
{
    this.msgdisplay = new AlertMsgDisplayer();
    this.EnableOnPageDisplay = edh_EnableOnPageDisplay;
    this.ShowMsg = edh_ShowMsg;
    this.FinalShowMsg = edh_FinalShowMsg;
    this.all_msgs = new Array();
    this.clear_msgs = edh_clear_msgs;
}
 
function edh_clear_msgs()
{
    this.msgdisplay.clearmsg(this.all_msgs);
    this.all_msgs = new Array();
}
 
function edh_FinalShowMsg()
{
    if (this.all_msgs.length == 0)
    {
        return;
    }
    this.msgdisplay.showmsg(this.all_msgs);
}
 
function edh_EnableOnPageDisplay(single_box)
{
    if (true == single_box)
    {
        this.msgdisplay = new SingleBoxErrorDisplay();
    }
    else
    {
        this.msgdisplay = new DivMsgDisplayer();
    }
}
 
function edh_ShowMsg(msg, input_element)
{
    var objmsg = new Array();
    objmsg["input_element"] = input_element;
    objmsg["msg"] = msg;
    this.all_msgs.push(objmsg);
}
 
function AlertMsgDisplayer()
{
    this.showmsg = alert_showmsg;
    this.clearmsg = alert_clearmsg;
}
 
function alert_clearmsg(msgs)
{
 
}
 
function alert_showmsg(msgs)
{
    var whole_msg = "";
    var first_elmnt = null;
    for (var m = 0; m < msgs.length; m++)
    {
        if (null == first_elmnt)
        {
            first_elmnt = msgs[m]["input_element"];
        }
        whole_msg += msgs[m]["msg"] + "\n";
    }
 
    alert(whole_msg);
 
    if (null != first_elmnt)
    {
        sfm_set_focus(first_elmnt);
    }
}
 
function sfm_show_error_msg(msg, input_elmt)
{
    document.error_disp_handler.ShowMsg(msg, input_elmt);
}
 
function SingleBoxErrorDisplay()
{
    this.showmsg = sb_div_showmsg;
    this.clearmsg = sb_div_clearmsg;
}
 
function sb_div_clearmsg(msgs)
{
    var divname = form_error_div_name(msgs);
    sfm_show_div_msg(divname, "");
}
 
function sb_div_showmsg(msgs)
{
    var whole_msg = "<ul>\n";
    for (var m = 0; m < msgs.length; m++)
    {
        whole_msg += "<li>" + msgs[m]["msg"] + "</li>\n";
    }
    whole_msg += "</ul>";
    var divname = form_error_div_name(msgs);
    var anc_name = divname + "_loc";
    whole_msg = "<a name='" + anc_name + "' >" + whole_msg;
 
    sfm_show_div_msg(divname, whole_msg);
 
    window.location.hash = anc_name;
}
 
function form_error_div_name(msgs)
{
    var input_element = null;
 
    for (var m in msgs)
    {
        input_element = msgs[m]["input_element"];
        if (input_element)
        {
            break;
        }
    }
 
    var divname = "";
    if (input_element)
    {
        divname = input_element.form._sfm_form_name + "_errorloc";
    }
 
    return divname;
}
 
function sfm_show_div_msg(divname,msgstring)
{
   if(divname.length<=0) return false;
 
   if(document.layers)
   {
      divlayer = document.layers[divname];
        if(!divlayer){return;}
      divlayer.document.open();
      divlayer.document.write(msgstring);
      divlayer.document.close();
   }
   else
   if(document.all)
   {
      divlayer = document.all[divname];
        if(!divlayer){return;}
      divlayer.innerHTML=msgstring;
   }
   else
   if(document.getElementById)
   {
      divlayer = document.getElementById(divname);
        if(!divlayer){return;}
      divlayer.innerHTML =msgstring;
   }
   divlayer.style.visibility="visible";   
   return false;
}
 
function DivMsgDisplayer()
{
    this.showmsg = div_showmsg;
    this.clearmsg = div_clearmsg;
}
 
function div_clearmsg(msgs)
{
    for (var m in msgs)
    {
        var divname = element_div_name(msgs[m]["input_element"]);
        show_div_msg(divname, "");
    }
}
 
function element_div_name(input_element)
{
    var divname = input_element.form._sfm_form_name + "_" + input_element.name + "_errorloc";
 
    divname = divname.replace(/[\[\]]/gi, "");
 
    return divname;
}
 
function div_showmsg(msgs)
{
    var whole_msg;
    var first_elmnt = null;
    for (var m in msgs)
    {
        if (null == first_elmnt)
        {
            first_elmnt = msgs[m]["input_element"];
        }
        var divname = element_div_name(msgs[m]["input_element"]);
        show_div_msg(divname, msgs[m]["msg"]);
    }
    if (null != first_elmnt)
    {
        sfm_set_focus(first_elmnt);
    }
}
 
function show_div_msg(divname, msgstring)
{
    if (divname.length <= 0) return false;
 
    if (document.layers)
    {
        divlayer = document.layers[divname];
        if (!divlayer)
        {
            return;
        }
        divlayer.document.open();
        divlayer.document.write(msgstring);
        divlayer.document.close();
    }
    else if (document.all)
    {
        divlayer = document.all[divname];
        if (!divlayer)
        {
            return;
        }
        divlayer.innerHTML = msgstring;
    }
    else if (document.getElementById)
    {
        divlayer = document.getElementById(divname);
        if (!divlayer)
        {
            return;
        }
        divlayer.innerHTML = msgstring;
    }
    divlayer.style.visibility = "visible";
}
 
function ValidationDesc(inputitem, desc, error, condition)
{
    this.desc = desc;
    this.error = error;
    this.itemobj = inputitem;
    this.condition = condition;
    this.validate = vdesc_validate;
}
 
function vdesc_validate()
{
    if (this.condition != null)
    {
        if (!eval(this.condition))
        {
            return true;
        }
    }
    if (!validateInput(this.desc, this.itemobj, this.error))
    {
        this.itemobj.validatorobj.focus_disable_validations = true;
        sfm_set_focus(this.itemobj);
        return false;
    }
 
    return true;
}
 
function ValidationSet(inputitem, msgs_together)
{
    this.vSet = new Array();
    this.add = add_validationdesc;
    this.validate = vset_validate;
    this.itemobj = inputitem;
    this.msgs_together = msgs_together;
}
 
function add_validationdesc(desc, error, condition)
{
    this.vSet[this.vSet.length] =
    new ValidationDesc(this.itemobj, desc, error, condition);
}
 
function vset_validate()
{
    var bRet = true;
    for (var itr = 0; itr < this.vSet.length; itr++)
    {
        bRet = bRet && this.vSet[itr].validate();
        if (!bRet && !this.msgs_together)
        {
            break;
        }
    }
    return bRet;
}
 
/*  checks the validity of an email address entered 
*   returns true or false 
*/
function validateEmail(email)
{
    var splitted = email.match("^(.+)@(.+)$");
    if (splitted == null) return false;
    if (splitted[1] != null)
    {
        var regexp_user = /^\"?[\w-_\.]*\"?$/;
        if (splitted[1].match(regexp_user) == null) return false;
    }
    if (splitted[2] != null)
    {
        var regexp_domain = /^[\w-\.]*\.[A-Za-z]{2,4}$/;
        if (splitted[2].match(regexp_domain) == null)
        {
            var regexp_ip = /^\[\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\]$/;
            if (splitted[2].match(regexp_ip) == null) return false;
        } // if
        return true;
    }
    return false;
}
 
function TestComparison(objValue, strCompareElement, strvalidator, strError)
{
    var bRet = true;
    var objCompare = null;
    if (!objValue.form)
    {
        sfm_show_error_msg("Error: No Form object!", objValue);
        return false
    }
    objCompare = objValue.form.elements[strCompareElement];
    if (!objCompare)
    {
        sfm_show_error_msg("Error: Element with name" + strCompareElement + " not found !", objValue);
        return false;
    }
 
    var objval_value = objValue.value;
    var objcomp_value = objCompare.value;
 
    if (strvalidator != "eqelmnt" && strvalidator != "neelmnt")
    {
        objval_value = objval_value.replace(/\,/g, "");
        objcomp_value = objcomp_value.replace(/\,/g, "");
 
        if (isNaN(objval_value))
        {
            sfm_show_error_msg(objValue.name + ": Should be a number ", objValue);
            return false;
        } //if 
        if (isNaN(objcomp_value))
        {
            sfm_show_error_msg(objCompare.name + ": Should be a number ", objCompare);
            return false;
        } //if    
    } //if
    var cmpstr = "";
    switch (strvalidator)
    {
    case "eqelmnt":
        {
            if (objval_value != objcomp_value)
            {
                cmpstr = " should be equal to ";
                bRet = false;
            } //if
            break;
        } //case
    case "ltelmnt":
        {
            if (eval(objval_value) >= eval(objcomp_value))
            {
                cmpstr = " should be less than ";
                bRet = false;
            }
            break;
        } //case
    case "leelmnt":
        {
            if (eval(objval_value) > eval(objcomp_value))
            {
                cmpstr = " should be less than or equal to";
                bRet = false;
            }
            break;
        } //case     
    case "gtelmnt":
        {
            if (eval(objval_value) <= eval(objcomp_value))
            {
                cmpstr = " should be greater than";
                bRet = false;
            }
            break;
        } //case
    case "geelmnt":
        {
            if (eval(objval_value) < eval(objcomp_value))
            {
                cmpstr = " should be greater than or equal to";
                bRet = false;
            }
            break;
        } //case
    case "neelmnt":
        {
            if (objval_value.length > 0 && objcomp_value.length > 0 && objval_value == objcomp_value)
            {
                cmpstr = " should be different from ";
                bRet = false;
            } //if
            break;
        }
    } //switch
    if (bRet == false)
    {
        if (!strError || strError.length == 0)
        {
            strError = objValue.name + cmpstr + objCompare.name;
        } //if
        sfm_show_error_msg(strError, objValue);
    } //if
    return bRet;
}
 
function TestSelMin(objValue, strMinSel, strError)
{
    var bret = true;
    var objcheck = objValue.form.elements[objValue.name];
    var chkcount = 0;
    if (objcheck.length)
    {
        for (var c = 0; c < objcheck.length; c++)
        {
            if (objcheck[c].checked == "1")
            {
                chkcount++;
            } //if
        } //for
    }
    else
    {
        chkcount = (objcheck.checked == "1") ? 1 : 0;
    }
    var minsel = eval(strMinSel);
    if (chkcount < minsel)
    {
        if (!strError || strError.length == 0)
        {
            strError = "Please Select atleast" + minsel + " check boxes for" + objValue.name;
        } //if                                                               
        sfm_show_error_msg(strError, objValue);
        bret = false;
    }
    return bret;
}
 
function TestSelMax(objValue, strMaxSel, strError)
{
    var bret = true;
    var objcheck = objValue.form.elements[objValue.name];
    var chkcount = 0;
    if (objcheck.length)
    {
        for (var c = 0; c < objcheck.length; c++)
        {
            if (objcheck[c].checked == "1")
            {
                chkcount++;
            } //if
        } //for
    }
    else
    {
        chkcount = (objcheck.checked == "1") ? 1 : 0;
    }
    var maxsel = eval(strMaxSel);
    if (chkcount > maxsel)
    {
        if (!strError || strError.length == 0)
        {
            strError = "Please Select atmost " + maxsel + " check boxes for" + objValue.name;
        } //if                                                               
        sfm_show_error_msg(strError, objValue);
        bret = false;
    }
    return bret;
}
 
function IsCheckSelected(objValue, chkValue)
{
    var selected = false;
    var objcheck = objValue.form.elements[objValue.name];
    if (objcheck.length)
    {
        var idxchk = -1;
        for (var c = 0; c < objcheck.length; c++)
        {
            if (objcheck[c].value == chkValue)
            {
                idxchk = c;
                break;
            } //if
        } //for
        if (idxchk >= 0)
        {
            if (objcheck[idxchk].checked == "1")
            {
                selected = true;
            }
        } //if
    }
    else
    {
        if (objValue.checked == "1")
        {
            selected = true;
        } //if
    } //else  
    return selected;
}
 
function TestDontSelectChk(objValue, chkValue, strError)
{
    var pass = true;
    pass = IsCheckSelected(objValue, chkValue) ? false : true;
 
    if (pass == false)
    {
        if (!strError || strError.length == 0)
        {
            strError = "Can't Proceed as you selected " + objValue.name;
        } //if          
        sfm_show_error_msg(strError, objValue);
 
    }
    return pass;
}
 
function TestShouldSelectChk(objValue, chkValue, strError)
{
    var pass = true;
 
    pass = IsCheckSelected(objValue, chkValue) ? true : false;
 
    if (pass == false)
    {
        if (!strError || strError.length == 0)
        {
            strError = "You should select" + objValue.name;
        } //if          
        sfm_show_error_msg(strError, objValue);
 
    }
    return pass;
}
 
function TestRequiredInput(objValue, strError)
{
    var ret = true;
    if (VWZ_IsEmpty(objValue.value))
    {
        ret = false;
    } //if 
    else if (objValue.getcal && !objValue.getcal())
    {
        ret = false;
    }
 
    if (!ret)
    {
        if (!strError || strError.length == 0)
        {
            strError = objValue.name + " : Required Field";
        } //if 
        sfm_show_error_msg(strError, objValue);
    }
    return ret;
}
 
function TestFileExtension(objValue, cmdvalue, strError)
{
    var ret = false;
    var found = false;
 
    if (objValue.value.length <= 0)
    { //The 'required' validation is not done here
        return true;
    }
 
    var extns = cmdvalue.split(";");
    for (var i = 0; i < extns.length; i++)
    {
        ext = objValue.value.substr(objValue.value.length - extns[i].length, extns[i].length);
        ext = ext.toLowerCase();
        if (ext == extns[i])
        {
            found = true;
            break;
        }
    }
    if (!found)
    {
        if (!strError || strError.length == 0)
        {
            strError = objValue.name + " allowed file extensions are: " + cmdvalue;
        } //if 
        sfm_show_error_msg(strError, objValue);
        ret = false;
    }
    else
    {
        ret = true;
    }
    return ret;
}
 
function TestMaxLen(objValue, strMaxLen, strError)
{
    var ret = true;
    if (eval(objValue.value.length) > eval(strMaxLen))
    {
        if (!strError || strError.length == 0)
        {
            strError = objValue.name + " : " + strMaxLen + " characters maximum ";
        } //if 
        sfm_show_error_msg(strError, objValue);
        ret = false;
    } //if 
    return ret;
}
 
function TestMinLen(objValue, strMinLen, strError)
{
    var ret = true;
    if (eval(objValue.value.length) < eval(strMinLen))
    {
        if (!strError || strError.length == 0)
        {
            strError = objValue.name + " : " + strMinLen + " characters minimum  ";
        } //if               
        sfm_show_error_msg(strError, objValue);
        ret = false;
    } //if 
    return ret;
}
 
function TestInputType(objValue, strRegExp, strError, strDefaultError)
{
    var ret = true;
 
    var charpos = objValue.value.search(strRegExp);
    if (objValue.value.length > 0 && charpos >= 0)
    {
        if (!strError || strError.length == 0)
        {
            strError = strDefaultError;
        } //if 
        sfm_show_error_msg(strError, objValue);
        ret = false;
    } //if 
    return ret;
}
 
function TestEmail(objValue, strError)
{
    var ret = true;
    if (objValue.value.length > 0 && !validateEmail(objValue.value))
    {
        if (!strError || strError.length == 0)
        {
            strError = objValue.name + ": Enter a valid Email address ";
        } //if                                               
        sfm_show_error_msg(strError, objValue);
        ret = false;
    } //if 
    return ret;
}
 
function TestLessThan(objValue, strLessThan, strError)
{
    var ret = true;
    var obj_value = objValue.value.replace(/\,/g, "");
    strLessThan = strLessThan.replace(/\,/g, "");
 
    if (isNaN(obj_value))
    {
        sfm_show_error_msg(objValue.name + ": Should be a number ", objValue);
        ret = false;
    } //if 
    else if (eval(obj_value) >= eval(strLessThan))
    {
        if (!strError || strError.length == 0)
        {
            strError = objValue.name + " : value should be less than " + strLessThan;
        } //if               
        sfm_show_error_msg(strError, objValue);
        ret = false;
    } //if   
    return ret;
}
 
function TestGreaterThan(objValue, strGreaterThan, strError)
{
    var ret = true;
    var obj_value = objValue.value.replace(/\,/g, "");
    strGreaterThan = strGreaterThan.replace(/\,/g, "");
 
    if (isNaN(obj_value))
    {
        sfm_show_error_msg(objValue.name + ": Should be a number ", objValue);
        ret = false;
    } //if 
    else if (eval(obj_value) <= eval(strGreaterThan))
    {
        if (!strError || strError.length == 0)
        {
            strError = objValue.name + " : value should be greater than " + strGreaterThan;
        } //if               
        sfm_show_error_msg(strError, objValue);
        ret = false;
    } //if  
    return ret;
}
 
function TestRegExp(objValue, strRegExp, strError)
{
    var ret = true;
    if (objValue.value.length > 0 && !objValue.value.match(strRegExp))
    {
        if (!strError || strError.length == 0)
        {
            strError = objValue.name + ": Invalid characters found ";
        } //if                                                               
        sfm_show_error_msg(strError, objValue);
        ret = false;
    } //if 
    return ret;
}
 
function TestDontSelect(objValue, dont_sel_value, strError)
{
    var ret = true;
    if (objValue.value == null)
    {
        sfm_show_error_msg("Error: dontselect command for non-select Item", objValue);
        ret = false;
    }
    else if (objValue.value == dont_sel_value)
    {
        if (!strError || strError.length == 0)
        {
            strError = objValue.name + ": Please Select one option ";
        } //if                                                               
        sfm_show_error_msg(strError, objValue);
        ret = false;
    }
    return ret;
}
 
function TestSelectOneRadio(objValue, strError)
{
    var objradio = objValue.form.elements[objValue.name];
    var one_selected = false;
    for (var r = 0; r < objradio.length; r++)
    {
        if (objradio[r].checked == "1")
        {
            one_selected = true;
            break;
        }
    }
    if (false == one_selected)
    {
        if (!strError || strError.length == 0)
        {
            strError = "Please select one option from " + objValue.name;
        }
        sfm_show_error_msg(strError, objValue);
    }
    return one_selected;
}
 
function TestSelectRadio(objValue, cmdvalue, strError, testselect)
{
    var objradio = objValue.form.elements[objValue.name];
    var selected = false;
 
    for (var r = 0; r < objradio.length; r++)
    {
        if (objradio[r].value == cmdvalue && objradio[r].checked == "1")
        {
            selected = true;
            break;
        }
    }
    if (testselect == true && false == selected || testselect == false && true == selected)
    {
        sfm_show_error_msg(strError, objValue);
        return false;
    }
    return true;
}
 
 
//*  Checks each field in a form 
 
 
function validateInput(strValidateStr, objValue, strError)
{
 
    var ret = true;
    var epos = strValidateStr.search("=");
    var command = "";
    var cmdvalue = "";
    if (epos >= 0)
    {
        command = strValidateStr.substring(0, epos);
        cmdvalue = strValidateStr.substr(epos + 1);
    }
    else
    {
        command = strValidateStr;
    }
 
    switch (command)
    {
    case "req":
    case "required":
        {
            ret = TestRequiredInput(objValue, strError)
            break;
        }
    case "maxlength":
    case "maxlen":
        {
            ret = TestMaxLen(objValue, cmdvalue, strError)
            break;
        }
    case "minlength":
    case "minlen":
        {
            ret = TestMinLen(objValue, cmdvalue, strError)
            break;
        }
    case "alnum":
    case "alphanumeric":
        {
            ret = TestInputType(objValue, "[^A-Za-z0-9]", strError, objValue.name + ": Only alpha-numeric characters allowed ");
            break;
        }
    case "alnum_s":
    case "alphanumeric_space":
        {
            ret = TestInputType(objValue, "[^A-Za-z0-9\\s]", strError, objValue.name + ": Only alpha-numeric characters and space allowed ");
            break;
        }
    case "num":
    case "numeric":
    case "dec": 
    case "decimal": 
        {
            if (objValue.value.length > 0 && !objValue.value.match(/^[\-\+]?[\d\,]*\.?[\d]*$/))
            {
                sfm_show_error_msg(strError, objValue);
                ret = false;
            } //if 
            break;
        }
    case "alphabetic":
    case "alpha":
        {
            ret = TestInputType(objValue, "[^A-Za-z]", strError, objValue.name + ": Only alphabetic characters allowed ");
            break;
        }
    case "alphabetic_space":
    case "alpha_s":
        {
            ret = TestInputType(objValue, "[^A-Za-z\\s]", strError, objValue.name + ": Only alphabetic characters and space allowed ");
            break;
        }
    case "email":
        {
            ret = TestEmail(objValue, strError);
            break;
        }
    case "lt":
    case "lessthan":
        {
            ret = TestLessThan(objValue, cmdvalue, strError);
            break;
        }
    case "gt":
    case "greaterthan":
        {
            ret = TestGreaterThan(objValue, cmdvalue, strError);
            break;
        }
    case "regexp":
        {
            ret = TestRegExp(objValue, cmdvalue, strError);
            break;
        }
    case "dontselect":
        {
            ret = TestDontSelect(objValue, cmdvalue, strError)
            break;
        }
    case "dontselectchk":
        {
            ret = TestDontSelectChk(objValue, cmdvalue, strError)
            break;
        }
    case "shouldselchk":
        {
            ret = TestShouldSelectChk(objValue, cmdvalue, strError)
            break;
        }
    case "selmin":
        {
            ret = TestSelMin(objValue, cmdvalue, strError);
            break;
        }
    case "selmax":
        {
            ret = TestSelMax(objValue, cmdvalue, strError);
            break;
        }
    case "selone_radio":
    case "selone":
        {
            ret = TestSelectOneRadio(objValue, strError);
            break;
        }
    case "dontselectradio":
        {
            ret = TestSelectRadio(objValue, cmdvalue, strError, false);
            break;
        }
    case "selectradio":
        {
            ret = TestSelectRadio(objValue, cmdvalue, strError, true);
            break;
        }
        //Comparisons
    case "eqelmnt":
    case "ltelmnt":
    case "leelmnt":
    case "gtelmnt":
    case "geelmnt":
    case "neelmnt":
        {
            return TestComparison(objValue, cmdvalue, command, strError);
            break;
        }
    case "req_file":
        {
            ret = TestRequiredInput(objValue, strError);
            break;
        }
    case "file_extn":
        {
            ret = TestFileExtension(objValue, cmdvalue, strError);
            break;
        }
 
    } //switch 
    return ret;
}
 
function VWZ_IsListItemSelected(listname, value)
{
    for (var i = 0; i < listname.options.length; i++)
    {
        if (listname.options[i].selected == true && listname.options[i].value == value)
        {
            return true;
        }
    }
    return false;
}
 
function VWZ_IsChecked(objcheck, value)
{
    if (objcheck.length)
    {
        for (var c = 0; c < objcheck.length; c++)
        {
            if (objcheck[c].checked == "1" && objcheck[c].value == value)
            {
                return true;
            }
        }
    }
    else
    {
        if (objcheck.checked == "1")
        {
            return true;
        }
    }
    return false;
}
 
function sfm_str_trim(strIn)
{
    return strIn.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
}
 
function VWZ_IsEmpty(value)
{
    value = sfm_str_trim(value);
    return (value.length) == 0 ? true : false;
}
 
 
And here's the contact.php code referenced client side:
<?php
$errors = '';
 
$name = $_POST['name']; 
$email_address = $_POST['email']; 
$message = $_POST['message']; 
 
$myemail = 'email address removed for privacy';//<-----Put Your email address here.
 
if(empty($_POST['name'])  || 
   empty($_POST['email']) || 
   empty($_POST['message']))
{
    $errors .= "\n Error: all fields are required";
return false;
}
 
if (!preg_match(
"/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$/i", 
$email_address))
{
    $errors .= "\n Error: Invalid email address.";
return false;
}
 
if( empty($errors))
{
$to = $myemail; 
$email_subject = "Contact form submission: $name";
$email_body = "You have received a new message ".
" Here are the details:\n Name: $name \n Email: $email_address \n Message \n $message"; 
 
$headers = "From: $myemail\n"; 
$headers .= "Reply-To: $email_address";
 
mail($to,$email_subject,$email_body,$headers);
//redirect to the 'thank you' page
header('Location: contact-form-thank-you.html');
}  
?>
<!DOCTYPE HTML> 
<html>
<head>
<title>Contact Form Error</title>
<script>
function goBack() {
    window.history.back()
}
</script>
 
<link rel="stylesheet" href="css/skel.css" />
<link rel="stylesheet" href="css/style.css" />
<!--[if lte IE 8]><link rel="stylesheet" href="css/ie/v8.css" /><![endif]-->
</head>
 
<body>
<!-- This page is displayed only if there is some error -->
<p style="text-align: center;"><?php
echo nl2br($errors);
?></p>
 
<p style="text-align: center;"><button onclick="goBack()">Go Back</button></p>
 
</body>
</html>
Edited by fadedrunes
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