<!--

function CheckEmail(email)
{
   var errmsg = "";
   if (email.length == 0) {
   	  errmsg = "Please enter email address";
	  return errmsg;
   }
   
   if (email.indexOf(" ",0) != -1) {
   	  errmsg = "Email addresses do not contain spaces";
	  return errmsg;
   }
   
   if (email.length < 7) {
   	  errmsg = "An email address should be a minimum of seven characters";
	  return errmsg;
   }
   
   if (email.indexOf("@",0) == -1 || email.indexOf("@",0) < 1) {
   	  errmsg = "Email address must contain an @ symbol after mailbox name";
	  return errmsg;
   } 
   
   pos = email.indexOf("@",0);
   
   if (pos == (email.length  - 1)) {
   	  errmsg = "Email address must contain a domain name after the @ symbol"
	  return errmsg;
   }
   
   if (email.indexOf(".",pos + 1) == -1 || email.indexOf("@",pos + 1) == email.length - 1) {
   	  errmsg = "Email addresses end with a domain suffix eg .com,.au, .org";
	  return errmsg;
   }	  
   
   pos = email.indexOf(".",pos + 1);
   
   if (email.charAt(pos + 1) == ".") {
   	  errmsg = "Email addresses cannot contain  two .. together";
	  return errmsg;
   }
   
   if (email.charAt(email.length - 1) == ".") {
   	  errmsg = 'Email addresses cannot end with a "."';
	  return errmsg;
   }	    
   return errmsg;
}

//-->