function rollPic(strOffSrc, strOverSrc) {
	if (document.images) {
		this.off = new Image();
		this.over = new Image();
		this.off.src = strOffSrc;
		this.over.src = strOverSrc;
	}
}
function roll(strPic, strAction, strMsg) {
	if (document.images) {
		document.images[strPic].src = eval(strPic + '.' + strAction + '.src')
	}
	if (strMsg) {
		window.status = strMsg;
		return true;
	}
}

function swap(img, src) {
	if(document.images) {
		document.images[img].src = src;
	}
}

function togglePic(field) {
	if (field.src.indexOf('over.gif') > 0) {
		field.src = field.src.replace(/over.gif/i, 'base.gif');
	} else {
		field.src = field.src.replace(/base.gif/i, 'over.gif');
	}
}

function popupWindow(name, src, args){	
	window.open(src, name, args);	
}