function validateForm()
 {
 var x=document.forms["frmContact"]["yName"].value;
 if (x==null || x=="")
   {
   alert("Your Name is required field");
   return false;
   }
 var x1=document.forms["frmContact"]["yEmail"].value;
 var atpos=x1.indexOf("@");
 var dotpos=x1.lastIndexOf(".");
 if (x1==null || x1=="")
   {
   alert("Email is required field");
   return false;
   } 
else if (atpos<1 || dotpos<atpos+2 || dotpos+2>=x1.length)
   {
   alert("Not a valid e-mail address");
   return false;
   }
var x3=document.forms["frmContact"]["yPhone"].value; 
 if (x3==null || x3=="")
   {
   alert("Your Phone Number is required field");
   return false;
   }
var x2=document.forms["frmContact"]["yService"].value;
 if (x2=="SelectOne")
   {
   alert("Service type is required field");
   return false;
   }
 var x4=document.forms["frmContact"]["yMessage"].value;
 if (x4==null || x4=="")
   {
   alert("Your Message is required field");
   return false;
   }
 }