function swapImage(imgName,newImg){
	if ((navigator.appName == 'Netscape' && parseFloat(navigator.appVersion) >= 3) || (parseFloat(navigator.appVersion) >= 4)){
		eval('document.' + imgName + '.src = "' + newImg + '"');
	}
}

//Preload images
var menuimages=new Array()

function preloadimages(){
for (i=0;i<preloadimages.arguments.length;i++){
menuimages[i]=new Image()
menuimages[i].src=preloadimages.arguments[i]
}
}

preloadimages("Images/left-linko.gif","Images/content-linko.gif")