function checkchange(object_var,default_text){
  if(object_var.value == ""){
   object_var.value = default_text;
  }
}

function checkfocus(object_var,default_text){
  if(object_var.value == default_text){
   object_var.value = "";
  }
}
function sortlink(vars){
	document.getElementById('seach_order').value = vars;
	
	if (document.getElementById('seach_order').value == vars) {
		if (document.getElementById('seach_order_dir').value == 'asc') {
			document.getElementById('seach_order_dir').value = 'desc';
		} else {
			document.getElementById('seach_order_dir').value = 'asc';
		}
	} else {
		document.getElementById('seach_order_dir').value = 'desc';
	}
	
	document.form.submit();
}