//* image rollover *//
function overImg( obj ) {
    obj.src = obj.src.replace( 'off.gif', 'over.gif' );
}
function outImg( obj ) {
    obj.src = obj.src.replace( 'over.gif', 'off.gif' );
}
function tabChange(obj,num,imgId,total) {
	for (i=1; i<=total; i++)    {
		var imgIds = document.getElementById(imgId+i);
		var imgSrc = imgIds.getAttribute("src");
		if (i==num)    {
			document.getElementById(obj+i).style.display = '';
			imgIds.setAttribute("src",imgSrc.replace("_off","_on"));
		}
		else {
			document.getElementById(obj+i).style.display = 'none';
			imgIds.setAttribute("src",imgSrc.replace("_on","_off"));
		}
	}
}