/**
 * @author stefan.schult
 */
function addLoadEvent(func){
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
        window.onload = func;
    }
    else {
        window.onload = function(){
            oldonload();
            func();
        }
    }
}

var preloadImages = ["/images/Home_02.jpg", "/images/AboutUs_02.jpg", "/images/Services_02.jpg", "/images/ContactUs_02.jpg"];
function initPreloadImages(){
    var d = document;
    if (d.images) {
        if (!d.MM_p) 
            d.MM_p = new Array();
        var i, j = d.MM_p.length, a = preloadImages;
        for (i = 0; i < a.length; i++) 
            if (a[i].indexOf("#") != 0) {
                d.MM_p[j] = new Image;
                d.MM_p[j++].src = a[i];
            }
    }
}
addLoadEvent(initPreloadImages);

function initNaviReplaceImages(){
	var naviImages = document.getElementById("navi").getElementsByTagName("IMG");
	for (var i = 0; i < naviImages.length; i++) {
		naviImages[i].onmouseover = OnMouseEnter;
		naviImages[i].onmouseout = OnMouseLeave;
	}
	
}
addLoadEvent(initNaviReplaceImages);

function OnMouseEnter(){
	this.src = this.src.substring(0, this.src.length-6)+"02.jpg";
}
function OnMouseLeave(){
	this.src = this.src.substring(0, this.src.length-6)+"01.jpg";
}