$(function(){

    var config = {
         interval: 100,  // number = milliseconds for onMouseOver polling interval    
         over: doOpen,   // function = onMouseOver callback (REQUIRED)    
         timeout: 300,   // number = milliseconds delay before onMouseOut    
         out: doClose    // function = onMouseOut callback (REQUIRED)    
    };
    
    function doOpen() {
    	$(this).css("z-index", 100);
        $(this).find("ul.drop").slideDown(1000);
        $(this).find("#navback").slideDown(1000);
    }
 
    function doClose() {
    	$(this).css("z-index", 10);
        $(this).find("ul.drop").slideUp(1000);
        $(this).find("#navback").slideUp(1000);
    }

    $("li.nav_item").hoverIntent(config);

});