function popup(URL,name,arg){
window.open(URL,name,arg);
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

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

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		btn_currentInfo_over = newImage("images/menu/btn_currentInfo-over.gif");
		btn_corporate_over = newImage("images/menu/btn_corporate-over.gif");
		btn_SMC_over = newImage("images/menu/btn_SMC-over.gif");
		btn_CBM_over = newImage("images/menu/btn_CBM-over.gif");
		btn_HT_over = newImage("images/menu/btn_HT-over.gif");
		preloadFlag = true;
	}
}