function over(newSrc){
	img = document.getElementById('mainImage');
	if(newSrc){
		img.src = newSrc;
	}
}

var last = "d1";

function showDetail(newSrc, title, triger) {
    document.getElementById(last).style.border = "1px solid #d1dbe1";
    document.getElementById(triger).style.border = "1px solid red";
    document.getElementById('detailInfo').innerHTML = "<img src=\"" + newSrc + "\" alt=\"\" /><br />" + title;    
    last = triger;
    return false;
}