function attachimg(obj, action, text) {
    if(action == 'load') {
	    if(obj.width > screen.width * 0.7) {
		    obj.resized = true;
		    obj.width = screen.width * 0.7;
		    obj.alt = text;
	    }
	    obj.onload = null;
    } else if(action == 'mouseover') {
	    if(obj.resized) {
		    obj.style.cursor = 'pointer';
	    }
    } else if(action == 'click') {
	    if(!obj.resized) {
		    return false;
	    } else {
		    window.open(text);
	    }
    }
}
function imgzoom(o) {
    if(event.ctrlKey) {
	    var zoom = parseInt(o.style.zoom, 10) || 100;
	    zoom -= event.wheelDelta / 12;
	    if(zoom > 0) {
		    o.style.zoom = zoom + '%';
	    }
	    return false;
    } else {
	    return true;
    }
}
function to_show_pic(obj,IMAGE){
 oo("div_big_pic_show").src = obj.src;
 oo("big_link").href="open_bigpic.aspx?pro_id=<%=pro_id %>&show="+IMAGE;
}
function goLogin() {
    var rtnURL = escape(top.location.href);
    var url = 'login.aspx';
    top.location.href = url + "?url=" + rtnURL;
}