sfHover = function() {
	var sfEls = document.getElementById("MainNav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" over";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" over\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);


if (document.images) {
    var imagesNormal = new Object( );
    var imagesActive = new Object( );
    imagesNormal["home"] = new Image(35, 132);
    imagesNormal["home"].src = "images/nav_home.jpg";
    imagesNormal["upcoming"] = new Image(35, 132);
    imagesNormal["upcoming"].src  = "images/nav_upcoming.jpg";
    imagesNormal["recent"] = new Image(35, 132);
    imagesNormal["recent"].src  = "images/nav_recent.jpg";
    imagesNormal["tickets"] = new Image(35, 132);
    imagesNormal["tickets"].src  = "images/nav_tickets.jpg";
    imagesNormal["getting"] = new Image(35, 132);
    imagesNormal["getting"].src  = "images/nav_getting.jpg";
    imagesNormal["about"] = new Image(35, 132);
    imagesNormal["about"].src  = "images/nav_about.jpg";

    imagesActive["home"] = new Image(35, 132);
    imagesActive["home"].src = "images/nav_active_home.jpg";
    imagesActive["upcoming"] = new Image(35, 132);
    imagesActive["upcoming"].src  = "images/nav_active_upcoming.jpg";
    imagesActive["recent"] = new Image(35, 132);
    imagesActive["recent"].src  = "images/nav_active_recent.jpg";
    imagesActive["tickets"] = new Image(35, 132);
    imagesActive["tickets"].src  = "images/nav_active_tickets.jpg";
    imagesActive["getting"] = new Image(35, 132);
    imagesActive["getting"].src  = "images/nav_active_getting.jpg";
    imagesActive["about"] = new Image(35, 132);
    imagesActive["about"].src  = "images/nav_active_about.jpg";

}


function setImage(imgName, type) {
    if (document.images) {
        if (type == "active") {
            document.images[imgName].src = imagesActive[imgName].src;
            return true;
        } else if (type == "normal") {
            document.images[imgName].src = imagesNormal[imgName].src;
            return true;
        }
    }
    return false;
}


function toggleElement(id){ 
    if(!document.getElementById)
        return;
    var elem = document.getElementById(id);
    elem.style.display = (elem.style.display == 'block') ? 'none' : 'block';
}