var gRolloverOnArray = null;

function setupRollover (imageTagName, imageOnPath, imageOffPath) {
	if (document.images) {
		eval ('i' + imageTagName + 'on = new Image()');
		eval ('i' + imageTagName + 'on.src = "' + imageOnPath + '"');

		eval ('i' + imageTagName + 'off = new Image()');
		eval ('i' + imageTagName + 'off.src = "' + imageOffPath + '"');
	}
}

function turnRolloversOn () {
	turnRolloversOff ();
	
	if (document.images) {
		len = turnRolloversOn.arguments.length;
		gRolloverOnArray = new Array (len);
		
		for (var i = 0; i < len; ++i) {
			arg = gRolloverOnArray[ i ] = turnRolloversOn.arguments[ i ];
			document[ arg ].src = eval ('i' + arg + 'on.src');
		}
	}
}
			
function turnRolloversOff () {
	if ((document.images) && (gRolloverOnArray != null)) {
		
		len = gRolloverOnArray.length;
		
		for (var i = 0; i < len; ++i) {
			arg = gRolloverOnArray[ i ];
			document[ arg ].src = eval ('i' + arg + 'off.src');
		}
	}
	
	gRolloverOnArray = null
}