function contact_formValidation()
{

 if(document.conForm.uname.value=="")
 {
  alert("Please Enter Your Name!");
  document.conForm.uname.focus();
  return false;
 }
 
 var email_address=document.conForm.email_address.value;		
if(email_address=="")
{
alert("Please Enter Your Email Address!");
document.conForm.email_address.focus();
return false;
}
if(valemail(email_address,"Please Enter Valid Email Address!") == false)
{
document.conForm.email_address.select();
return false;
}


}

function valemail(field,alerttxt)
{
  with (field)
  {
   var atpos = field.indexOf("@")
   var dotpos = field.lastIndexOf(".")
   var lastpos = field.length - 1
    if (atpos < 2 || dotpos - atpos < 2 || lastpos-dotpos > 4 || lastpos-dotpos < 2 )
	{
	   alert(alerttxt)		
	   return false
	} 
  }
}