$(function() {	
	 
             $.ajax({
                 type: "GET",
                 url: "xml_doc/ProductGroupXml.aspx?sid=topl&page=1&pagesize=20",
                 dataType: "xml",
                 success: function(xml) {
                     $(xml).find('book').each(function(){
						 var cover = $(this).find('cover').text();
						 var link = $(this).find('link').text();
						 var rank = $(this).find('rank').text();
						 
						 var slideNo = 1;						 
						 if ((rank > 5) && (rank <= 10))
						 {
						    slideNo = 2;
						 }
						 else if ((rank > 10) && (rank <= 15))
						 {
						    slideNo = 3;
						 }
						 else if ((rank > 15) && (rank <= 20))
						 {
						    slideNo = 4;
						 }
						 						 
                        $('<div class="slide_pic_box"></div>')
                             .html('<a href="'+link+'"><img src="'+cover+'" /></a>')
                             .appendTo('#slide_' + slideNo);							 

							 
                     }); //close each
                 }
             }); //close ajax			 
			 	 
			 
     }); //close all