Email Validation Using JavaScript in ASP

Hi all,

Very very new to ASP and Java. With the help of much reading on EE I have managed to get some validation working for my ASP development. However, in trying to get my Email validation to working using JavaScript and RegEx, it falls apart.

The validiation works for the blank LMFullName but not for the Email Address.

I'm sure its got to do with my JavaScript - help....

<script language="JavaScript" type="text/javascript">
<!-- JavaScript to validate form and disable submit button
function isEmail(strValue){
      var objRegExp = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
      return objRegExp.test(strValue);
}
 
function CheckForm(form)
{
 
  document.getElementById("LMFullName").innerHTML = "";
	
	if (form.txt_LMFullName.value == "")
	{
	  document.getElementById("LMFullName").innerHTML = "<font color=#FF0000>*";
	  form.txt_LMFullName.focus();
	  return false;
	}
  
 
    if(!isEmail(form.txt_LMEmailAddress.value))
	{
       err += "- e-mail Addresse\n";
       if(form.txt_LMEmailAddress.value == "") focusField = "email";
     }
       if(err != ""){
	   document.getElementById("EmailAddress").innerHTML = "<font color=#FF0000>*";
       form.txt_LMEmailAddress.focus();
       return false;
       }
  
  
  document.form1.button_Save.disabled=true;
  document.form1.button_Save.value="Done.";
  return true ;
}
//-->
</script>

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