function check(frm)
 {
 re = /([0-9a-zA-Z\.-_]+)@([0-9a-zA-Z\.-_]+)/;
 var realname, email, dataRight = true;
 message = "";
 realname=frm.realname.value;
 email=frm.email.value;
if (realname.length==0)
    {
    message += "\n -  Your Name";
    dataRight=false;
    }
if (email.length==0)
   {
   message += "\n -  Your E-Mail Address is not Valid";
   dataRight=false;
   }
if (email.length!=0 && email.match(re)==null)
   {
   dataRight=false;
   message += "\n -  Your E-Mail is Incorrect";
   }

if (!dataRight)
    {
if (message != "")
   {
   message ="\n" +
   "You failed to correctly fill in the form:\n" +
   message + "\n" +
   "\nPlease re-enter and click the Submit button again!";
   }
    alert(message);
    }
 return dataRight;
 }