function  Search()
{
	if(document.search_form.search.value=="Enter key words"||document.search_form.search.value=="")
		{
		  alert("Please enter key words");
		}
	else
		{
		  window.location="<?php echo $addon_path; ?>index/search_result/index.php?search="+escape(document.search_form.search.value);
		}

}