//::::Image preload
function imagePreload() {
	var imgObj = new Array();
	if (document.images) {
		for (var i in gImgSrc) {
			imgObj[i] = new Image();
			imgObj[i].src = gImgSrc[i];
		}
		gPreloadFlag = true;
	}
}


//::::Image swap
function changeImg() {
	var parentObj, chgImgArg;
	if (gPreloadFlag) {
		chgImgArg = changeImg.arguments;
		chgImgArg.length % 2 == 0 ? parentObj = window : parentObj = document.layers[chgImgArg[chgImgArg.length - 1]];
		for (var i = 0; i < chgImgArg.length; i += 2) {
			if (i >= chgImgArg.length - 1) break;
			parentObj.document.images[chgImgArg[i]].src = chgImgArg[i + 1];
		}
	}
}