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

var preloadFlag = false;
function preload() {
	if (document.images) {
		b_a = newImage("images/bull_a.gif"); preloadFlag = true;
	}
}

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