function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		   
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    
		    return false
		 }

 		 return true					
	}



function ValidateForm(form){




		listMessage = "";

		if (form.elements["Contact0FirstName"].value=="FIRST NAME")
		listMessage += "\n* First Name";

		if (form.elements["Contact0LastName"].value=="LAST NAME")
		listMessage += "\n* Last Name";

		if (!form.elements["Contact0FirstName"].value.length)
		listMessage += "\n* First Name";

		if (!form.elements["Contact0LastName"].value.length)
		listMessage += "\n* Last Name";

		if (echeck(form.elements["Contact0Email"].value)==false)
		listMessage += "\n* Invalid Email";

		if (listMessage.length)
		{
		alert("The following required fields are empty or invalid:\n" + listMessage + "\n\nPlease fill these fields in and try again.");
		return false;
		}

	else
		{
		// set correct return url

		form.elements["retURL"].value = form.elements["retURL"].value +
		form.elements["first_name"].value + ' ' +
		form.elements["last_name"].value;
		return true;
		}


		form.elements["00N30000001YoZP"].value = interestNameJs;

		if (listMessage.length)
		{
		alert("The following required fields are empty:\n" + listMessage + "\n\nPlease fill these fields in and try again.");
		return false;
		}
		else
		{
		// set correct return url

		form.elements["retURL"].value = form.elements["retURL"].value +
		form.elements["first_name"].value + ' ' +
		form.elements["last_name"].value;
		return true;
		}
		}