function preload (scriptname,dateiname) {
	eval ( scriptname + " = new Image();" );
	eval ( scriptname + ".src = '" + dateiname + "';" );
}

function swapImage() {
	if (document.images && (preloadflag = true)) {
		for (var i=0; i<swapImage.arguments.length; i+=2) {
			document[swapImage.arguments[i]].src = eval(swapImage.arguments[i+1] + ".src");
		}
	}
}

function swapImageInLayer(layer, image, newImage){
	eval (layer + ".doc." + image + ".src = " + newImage + ".src")
}

function swapImageInLayerAbsolut(layer, image, newImage){
	eval (layer + ".doc." + image + ".src = '" + newImage + "'" )
}