$(document).ready(function() {
    doResize();
});
$(window).resize(function() {
    doResize();
});

function doResize()
{
    if(document.getElementById("ctl00_tmpLeftMenu"))
    {
        var leftMenuHeight = $(".LeftMenu").height();
        var mainContentHeight = $(".MainContentWithMenu").height();
        
        if(leftMenuHeight > mainContentHeight)
        {
            $(".MainContentWithMenu").height(leftMenuHeight + 20);
        }
        else
        {
            $(".MainContentWithMenu").height = ($("#mainContentBottom").offset().top + 250);
        }
        
        mainContentHeight = $(".MainContentWithMenu").height();
        
        if(mainContentHeight < 600)
        {
            $('.TemplateMainContent').css("background-image", "url(media/images/ccs_template/bgGradient400.jpg)"); 
        }
        else if (mainContentHeight < 800)
        {
            $('.TemplateMainContent').css("background-image", "url(media/images/ccs_template/bgGradient600.jpg)"); 
        }
        else 
        {
            $('.TemplateMainContent').css("background-image", "url(media/images/ccs_template/bgGradient800.jpg)"); 
        }
    }
}