function swapImgRestore() {
if (document.swapImgData != null)
for (var i=0; i<(document.swapImgData.length-1); i+=2)
document.swapImgData[i].src = document.swapImgData[i+1];
}
function swapImage() {
var i,j=0,objStr,obj,swapArray=new Array,oldArray=document.swapImgData;
for (i=0; i < (swapImage.arguments.length-2); i+=3) {
objStr = swapImage.arguments[(navigator.appName == 'Netscape')?i:i+1];
if ((objStr.indexOf('document.layers[')==0 && document.layers==null) ||
(objStr.indexOf('document.all[')   ==0 && document.all   ==null))
objStr = 'document'+objStr.substring(objStr.lastIndexOf('.'),objStr.length);
obj = eval(objStr);
if (obj != null) {
swapArray[j++] = obj;
swapArray[j++] = (oldArray==null || oldArray[j-1]!=obj)?obj.src:oldArray[j];
obj.src = swapImage.arguments[i+2];
}
}
document.swapImgData = swapArray;
}