$().ready(function() {
	showMenuBG();
});

function showMenuBG() {
	var ht = parseInt($("#left-wrap").outerHeight()) - 300 + "px";
	$("#left-bg").css({height: ht, display: "block"});

    var ht = parseInt($("#right-wrap").outerHeight()) - 335 + "px";
    $("#right-bg").css({height: ht, display: "block"});
}