function PhoneNumber(obj) // Allow numbers as per Unit testing
{
    if (((event.keyCode>=48) && (event.keyCode<=57))||((event.keyCode>=44)&& (event.keyCode<=46))||(event.keyCode==32) ||(event.keyCode==92)||(event.keyCode==40)||(event.keyCode==41))
    {	event.returnValue=true;    }
    else
    {	event.returnValue=false;   }
}