function Add()
	{
	
	   if(document.frmcontact.fname.value == "")
	   	{
		   alert ("Please enter name of teacher");
		   document.frmcontact.fname.focus();
		   return false;
		}
	  if(document.frmcontact.txtdate.value == "")
	   	{
		alert ("Please enter date.");
		document.frmcontact.txtdate.focus();
		return false;
		}
	 if(document.frmcontact.txtdigit.value == "")
	   	{
		alert ("Please enter social security number.");
		document.frmcontact.txtdigit.focus();
		return false;
		}
	if(isNaN(document.frmcontact.txtdigit.value)){
		alert("social security number must be a Number");
		document.frmcontact.txtdigit.focus();
		return false
	}
		
	if(document.frmcontact.duration.value == "")
	   	{
		alert ("Please Select Testname.");
		document.frmcontact.duration.focus();
		return false;
		}
	
		
}