var ACT_SRC_DIR = "/img/act/";

function actImgOver(imgName,imgSrc,mode) {
	if (mode == 1) {
    		document[imgName].src = ACT_SRC_DIR + imgSrc + "-over.gif";
	} else {
    		document[imgName].src = ACT_SRC_DIR + imgSrc + ".gif"; 
	}
}