/* Function to validate the sign up form*/
function validateReg()
{
	with(obj)
	{
		if(first_name.value == "")
		{
			alert("Please enter your First Name");
			first_name.focus();
			return;
		}
		if(last_name.value == "")
		{
			alert("Please enter your Last Name");
			last_name.focus();
			return;
		}
		if(email.value == '')
		{
			alert('Please enter Email Address');
			email.focus();
			return;
		}
		if(!chkEmail(email.value))
		{
			alert('Please enter a valid Email Address');
			email.select();
			email.focus();
			return;
		}
		if(security_code.value == '')
		{
			alert("Please enter the Security Code correctly.");
			security_code.focus();
			return;
		}
	}
	//All ok
	obj.action = "sign_up.php";
	obj.submit();
}