var SITE_URL = "http://evershedsgrad-dev.sasdesign.co.uk";

$(document).ready(function()
{    

    //Init main navigation menu
    init_main_nav();
        
    //Display current main navigation item
    display_current_main_nav_item();
    
    
    
    //Build landing page slides
    $(".link_sifr").click( function()
    {
        link = $(this).find("a").attr("href");
        //alert(link + "=> clicked");
    });
    
    $(".link_sifr").find(".more").hide();
    //$(".link_sifr").hide();
    $(".link_sifr").hover( function()
    {
        $(this).toggleClass("link_sifr_hover");                
        $(this).find("span").show();        
    },function()
    {
        $(this).toggleClass("link_sifr_hover");
        $(this).find("span").hide();
    });

    
    //End landing page slides
    
    
    //Build nav slides

    $(".navtitlecontainer").click( function()
    {
        link = $(this).find("a").attr("href");
        //alert(link + "=> clicked");
    });
    
    $(".navtitlecontainer").hover( function(){
        $(this).toggleClass("navtitlecontainer_hover");        
    },function(){
        $(this).toggleClass("navtitlecontainer_hover");
    });

    //End nav slides
    
    
    
    // rollover functions using jquery
    $(".rollover").hover(
        function() {
        curr = $(this).find("img").attr("src");
        overlen = curr.length;
        over = curr.substr(0, overlen-4);
        over = over+'_o.jpg';
        $(this).find("img").attr({ src: over});
        },
        function() {
        $(this).find("img").attr({ src: curr});
        }
    )

    $(".rollover").find("img").each(function(i) {
        temp = this.src;
        prelen = temp.length;
        pre = temp.substr(0, prelen-4);
        pre = pre+'_o.jpg';
        preload_image_object = new Image();
        preload_image_object.src = pre;
    });
    
    // END rollover functions using jquery
    

   

});

function init_main_nav()
{
    if ($("#nav"))
    {
        $("#nav li ul").hide();

    }
}

function display_current_main_nav_item()
{
    pageID = $("body").attr("id");
    if(pageID && pageID != "popup_table")
    {
        pageID = pageID.slice(4);
        mainNavId = pageID.slice(0,1);
        var navArray = $("#nav>li");        
        if (pageID != "0")
            for (var i=0; i<(navArray.length+1); i++)
            {
                if (i != mainNavId)
                {
                    //Use the following line to hide none current parents
                    //$("#nav"+i).hide();
                }
            }
        {        
            current_item = $("#nav"+pageID);
            current_item.addClass("active");
            current_item.find("a:eq(0)").addClass("active");
            current_item.find("a:eq(0)").show();
            expand_current_item(current_item);
            current_item.show();
        }

    } 
}

function expand_current_item(current)
{             
    current.find("ul:eq(0)").show();
    if(current.parent("ul:eq(0)").attr("id") != "nav")
    {        
        expand_current_item(current.parents("li:eq(0)"));
    }
    else
    {        
        if (current.find("li:eq(0)").attr("id") != null)
        {            
            current.find("a:eq(0)").addClass("parent");
        }
    }
}