// function that removes default text upon focus and adds it back on blur
// but does not do those actions if the user enters data into the field
function textfield_onfocus(id,textvalue){
  jQuery(id)
  .focus(function(){
     if (jQuery(this).attr("value") == textvalue) { jQuery(this).val(''); }
   })
   .blur(function(){
     if (!jQuery(this).attr("value")){ jQuery(this).val(textvalue); }
   })
}