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Javascript help


wiqi

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Please help me to figure out why this form isnt working at all..

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Registration Form</title>
</head>
<body>
<script type='text/javascript'>
function formValidator(){
var name = document.getElementById('name');
var email = document.getElementById('email');
var password = document.getElementById('password');

if(notEmpty(name, "Please enter only letters for your First name")){
	if(lr(password, 6, 12)){
		if(notEmpty(email, "Please enter only letters for your Last Name")){

			return true;																							
		}
	}
}
return false;
	}

function notEmpty(elem, helperMsg){
if(elem.value.length == 0){
	alert(helperMsg);
	elem.focus();
	return false;
}
return true;
}


function lr(elem, min, max){
var uInput = elem.value;
if(uInput.length >= min && uInput.length <= max){
	return true;
}else{
	alert("Please enter between " +min+ " and " +max+ " characters");
	elem.focus();
	return false;
}
}

</SCRIPT>

<form action='' onsubmit='return formValidator()' name='myform' method='get' >
<table width="425" height="166" border="0">
  <tr>
    <td colspan="2"><h1>Registration Form </h1></td>
  </tr>
  <tr>
    <td width="122">Name</td>
    <td width="287">
      <input name="name" type="text" id="name" maxlength="15" />
   
    </td>
  </tr>
  <tr>
    <td>Email Address </td>
    <td><input name="email" type="text" id="email" maxlength="15" /></td>
  </tr>
  <tr>
    <td>Password</td>
    <td><input name="password" type="password" id="password" /></td>
  </tr>
  <tr>
    <td> </td>
    <td><input type="button" name="Submit" value="Submit" onmouseover=" document.myform.submit()" />
      <input type="reset" name="reset" value="Reset" /></td>
  </tr>
</table>
</form>
</body>
</html>

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form validation should have to be done when mouse pointer is placed over the (onmouseover function) submit button. it seems like stop working when i include the onmouseover="document.myform.submit"  as the default trigger for submit button.

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Even though this is clearly homework, which is against the rules to post, I'll give you a nudge in the right direction.

 

Your logic isn't very efficient.  It makes far more sense to tie the validation function to the input's onmouseover event, and leave the actual form submission to clicking the button instead of blindly sticking event handlers in your code.  In fact, if you re-read the question in your assignment, that's exactly what it's telling you to do.

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