Buttons dont work

[Russia]

I have a script to select all the checkboxes and a button to deselect all of them.

 

It isnt working.

 

Both versions arent working.

 

VERSION 1 OF THE SCRIPT!

<script type="text/javascript">
function allDelcheck(tf)
{
    var buttons = document.myform.elements("delcheck[]"); // this works!
    for ( var b = 0; b < buttons.length; ++b )
    {
        buttons[b].checked = tf;
    }
}
</script>

 

 

 

<?php

require("inc/config.php");
if (isset($_POST['del'])) 
{

    for ($count = 0;$count<count($_POST[delchk]);$count++)
   {
           $delete = $_POST[delchk][$count];
           $query = "DELETE FROM persons WHERE id = '$delete'";
           $result = mysql_query($query);
           if (!$result) 
   {
            die("Error deleting persons! Query: $query<br />Error: ".mysql_error());
        }
    }
}
$result = mysql_query("SELECT * FROM persons");

// Check how many rows it found
if(mysql_num_rows($result) > 0){
echo "<table class=\"gridtable\">
<thead>

    <tr>
        <th align=\"center\" scope=\"col\">Delete?</th>
        <th align=\"center\" scope=\"col\">First Name</th>
        <th align=\"center\" scope=\"col\">Last Name</th>
        <th align=\"center\" scope=\"col\">Highscores</th>
        <th align=\"center\" scope=\"col\">Date</th>
        <th align=\"center\" scope=\"col\">IP Address</th>
    </tr>
</thead>
<tbody>"; 


echo "<form name = 'myform' action='' method='post'>";
while($row = mysql_fetch_array($result))
  {
  echo "<tr align=\"center\">";
  echo '<td><input type="checkbox" id="delchk" name="delcheck[]" value="'.$row['id'].'" /></td>';  
  echo "<td class=\"valid\" >" . $row['FirstName'] . "</td>";
  echo "<td class=\"valid\" >" . $row['LastName'] . "</td>";
  echo "<td><a target=frame2 href='" ."profile.php?user=". $row['FirstName'] ."'>Check Highscores</a></td>"; 
  echo "<td>" . $row['AddedDate'] . "</td>";
  echo "<td>" . $row['Ip'] . "</td>";
  echo "</tr>";
  }
echo "</tbody>";
echo "</table>";
echo "<hr>";
echo "<input type='submit' name = 'del' value='Delete Selected'></form>";
echo "<input type='button' onclick='allDelcheck(true);' value='Select All'>"; 
echo "<input type='button' onclick='allDelcheck(false);' value='UnSelect All'>"; 

}

else{
// No rows were found ...
echo '<center>No logged accounts.</center>'; 
}

mysql_close();
?>

 

----

 

VERSION 2 OF THE SCRIPT!

 

<script type="text/javascript">
   function checkall(delchk)
   {
      for (i = 0; i < delchk.length; i++)
      delchk[i].checked = true;
   }
</script>

<script type="text/javascript">
   function uncheckall(delchk)
   {
      for (i = 0; i < delchk.length; i++)
      delchk[i].checked = false;
   }
</script>

 

 

 

 

PHP

<?php
error_reporting(E_ALL);

require("inc/config.php");
if (isset($_POST['del'])) 
{

    for ($count = 0;$count<count($_POST[delchk]);$count++)
   {
           $delete = $_POST[delchk][$count];
           $query = "DELETE FROM persons WHERE id = '$delete'";
           $result = mysql_query($query);
           if (!$result) 
   {
            die("Error deleting persons! Query: $query<br />Error: ".mysql_error());
        }
    }
}
$result = mysql_query("SELECT * FROM persons");

// Check how many rows it found
if(mysql_num_rows($result) > 0){
echo "<table id=\"mytable\">
<thead>

    <tr>
        <th align=\"center\" scope=\"col\">Delete?</th>
        <th align=\"center\" scope=\"col\">First Name</th>
        <th align=\"center\" scope=\"col\">Last Name</th>
        <th align=\"center\" scope=\"col\">Profile</th>
        <th align=\"center\" scope=\"col\">Date</th>
        <th align=\"center\" scope=\"col\">IP Address</th>
    </tr>
</thead>
<tbody>"; 


echo "<form name = 'myform' action='' method='post'>";
while($row = mysql_fetch_array($result))
  {
  echo "<tr align=\"center\">";
  echo '<td><input type="checkbox" id="delchk" name="delchk[]" value="'.$row['id'].'" /></td>';  
  echo "<td>" . $row['FirstName'] . "</td>";
  echo "<td>" . $row['LastName'] . "</td>";
  echo "<td><a target=frame2 href='" ."profile.php?user=". $row['FirstName'] ."'>Check Profile</a></td>"; 
  echo "<td>" . $row['AddedDate'] . "</td>";
  echo "<td>" . $row['Ip'] . "</td>";
  echo "</tr>";
  }
echo "</tbody>";
echo "</table>";
echo "<hr>";
echo "<input type='submit' name = 'del' value='Delete Selected'></form>";
echo "<input type='button' onclick='checkall(document.myform[\"delchk[]\"]);' value='Select All'>";
echo "<input type='button' onclick='uncheckall(document.myform[\"delchk[]\"]);' value='UnSelect All'>";

}

else{
// No rows were found ...
echo 'No registered members.'; 
}

mysql_close();
?> 

[JasonLewis]

Try something like this:

 

<script type="text/javascript">
function checkAll(d){
	var el = document.getElementsByTagName("input");
	for(var i = 0; i < el.length; i++){
		if(el[i].type == "checkbox"){
			el[i].checked = d;
		}
	}
}
</script>

 

Then your PHP part:

 

echo "<input type='button' onclick='javascript: checkAll(true);' value='Select All'>"; 
echo "<input type='button' onclick='javascript: checkAll(false);' value='UnSelect All'>";