function validate(form)
{
var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
if (form.Name.value == "")
   {
alert("You must enter your Name");
form.Name.focus()
return false; 
   }
else if (form.email.value == "")
   {
alert("You must Enter Your Email id");
form.email.focus()
return false; 
   }
else if (!filter.test(form.email.value))
   {
alert("You must Enter Valid Email id");
form.email.focus()
return false; 
   }
   return true;


}