function val(obj)
{
var no=obj.htno.value;

if(no=='')
	{
      alert("Please enter number");
      return false;
	}
if(isNaN(no))
	{
      alert("Please enter number");
      return false;
	}


}

function school(obj)
{

var sccode=obj.sccode.value;

if(sccode=='')
	{
      alert("Please Enter Your School Code");
      return false;
	}

if(isNaN(sccode))
	{
      alert("Please enter number");
      return false;
	}


}