function watermark(objname, waterMarkText)
{
      obj = document.getElementById(objname);
      if(obj.value == "")
      {
  	      obj.value=waterMarkText;
          
      }      
}
function hidewatermark(objname, waterMarkText)
{
      obj = document.getElementById(objname);
        if (obj.value == waterMarkText)
            obj.value = "";      
}