$(window).bind("load", function() { 

       var footerHeight = 0,
           footerTop = 0,
           $footer = $("#footer");

       positionFooter();

       function positionFooter() {

                footerHeight = $footer.outerHeight();
                footerTop = ($(window).scrollTop()+$(window).height()-footerHeight)+"px";

               if ( ($(document.body).height()) < $(window).height()) {
                   $footer.css({
                        position: "absolute", top: footerTop, left: "0px"
                   })
               } else {
                   $footer.css({
                        position: "static"
                   })
               }

       }

       $(window)
               .scroll(positionFooter)
               .resize(positionFooter)

});