// Browser Detection
isMac = (navigator.appVersion.indexOf("Mac")!=-1) ? true : false;
NS4 = (document.layers) ? true : false;
IEmac = ((document.all)&&(isMac)) ? true : false;
IE4plus = (document.all) ? true : false;
IE4 = ((document.all)&&(navigator.appVersion.indexOf("MSIE 4.")!=-1)) ? true : false;
IE5 = ((document.all)&&(navigator.appVersion.indexOf("MSIE 5.")!=-1)) ? true : false;
ver4 = (NS4 || IE4plus) ? true : false;
NS6 = (!document.layers) && (navigator.userAgent.indexOf('Netscape')!=-1)?true:false;

// Body onload utility (supports multiple onload functions)
var gSafeOnload = new Array();
function SafeAddOnload(f) {
if (IEmac && IE4) { // IE 4.5 blows out on testing window.onload
window.onload = SafeOnload;
gSafeOnload[gSafeOnload.length] = f;
} else if (window.onload) {
if (window.onload != SafeOnload) {
gSafeOnload[0] = window.onload;
window.onload = SafeOnload;
}
gSafeOnload[gSafeOnload.length] = f;
} else {
window.onload = f;
}
}
function SafeOnload() {
for (var i=0;i<gSafeOnload.length;i++)
gSafeOnload[i]();
}

// Call the following with your function as the argument
//SafeAddOnload(yourfunctioname);

/*
Standards Compliant Rollover Script
Author : Daniel Nolan
http://www.bleedingego.co.uk/webdev.php
*/

function initRollovers() {
if (!document.getElementById) return

var aPreLoad = new Array();
var sTempSrc;
var aImages = document.getElementsByTagName('img');

for (var i = 0; i < aImages.length; i++) {
if (aImages[i].className == 'imgover') {
var src = aImages[i].getAttribute('src');
var ftype = src.substring(src.lastIndexOf('.'), src.length);
var hsrc = src.replace(ftype, '_o'+ftype);

aImages[i].setAttribute('hsrc', hsrc);

aPreLoad[i] = new Image();
aPreLoad[i].src = hsrc;

aImages[i].onmouseover = function() {
sTempSrc = this.getAttribute('src');
this.setAttribute('src', this.getAttribute('hsrc'));
}

aImages[i].onmouseout = function() {
if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_o'+ftype, ftype);
this.setAttribute('src', sTempSrc);
}
}
}
}

SafeAddOnload(initRollovers);


function swapImg(newImage) {
theNewImage = 'url('+newImage+')';
    if (document.getElementById) {
        window.document.getElementById('mainPhoto').style.backgroundImage=theNewImage;
    }
    else if (document.layers) {
        window.document.layers['mainPhoto'].backgroundImage=theNewImage;
    }
    else if (document.all) {
        window.document.all['mainPhoto'].style.backgroundImage=theNewImage;
    }
}