The following code allows you to select multiple fields without having to select each check-box one by one. This code is allows you to delete and/or modify several items with one click.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> check all </title>
<meta http-equiv="Content-type" value="text/html; charset=UTF-8" />
<script type="text/javascript" language="javascript">
function chkall()
{
var count=0;
var a=0;
count=document.frm.id.length;
for(a=0;a<count;a++)
{
if (document.frm.id[0].checked==false)
{
document.frm.id[a].checked=false;
}
else if(document.frm.id[0].checked==true)
{
document.frm.id[a].checked=true;
}
}
}
</script>
</head>
<div style="width:600px; margin:0px auto">
<form name="frm" id="frm" action="" method="post">
<b>Select/Unselect All</b><br>
<div style="background:#ccc;"><input name="id[]" id="id" type="checkbox" onclick="chkall();" /></div><br><br>
<input type="checkbox" name="id[]" value="1" id="id">
<input type="checkbox" name="id[]" value="2" id="id">
<input type="checkbox" name="id[]" value="3" id="id">
<input type="checkbox" name="id[]" value="4" id="id">
<input type="checkbox" name="id[]" value="5" id="id">
<input type="checkbox" name="id[]" value="6" id="id">
</form>
</div>
</body>
</html>
