/* $HeadURL: svn://build/ColoPropertyV2/branches/release-prep/web/js/ImageViewer.js $  $Revision: 42818 $ $Date: 2009-01-15 15:43:41 -0700 (Thu, 15 Jan 2009) $ */
/* Copyright (c) 2007 RealGo Inc. All rights */


var browserOK = (navigator.userAgent.indexOf ("MSIE 3") == -1),
    pics = new Array();

function loadImages(name, id) {
	if (browserOK) {
		var pic = pics[name];
		if (!pic) {
			pic = pics[name] = new Array();
			pic.pos= 0;
		}
		pic.push(id);
	}
}

function loadPhoto(index,name) {
	if (browserOK){
		var pic = pics[name];
		document.images[name].src= pic[pic.pos = index];  
		decorateText(index,name);
	}
}

function nextImg(name) {
	if (browserOK) {
		var pic = pics[name];
        pic.pos = (pic.pos + 1) % pic.length;
		document.images[name].src= pic[pic.pos];
	}
}

function nextPhoto(name) {
	if (browserOK) {
		nextImg(name);
		decorateText(pics[name].pos,name);       
	}
}

function prevImg(name) {
	if (browserOK) {
		var pic = pics[name];
        pic.pos = (pic.pos + pic.length - 1) % pic.length;
		document.images[name].src= pic[pic.pos];
	}
}

function prevPhoto(name) {
	if (browserOK) {
		prevImg(name);
		decorateText(pics[name].pos,name);    
	}
}

function decorateText(index,name) {
  	var pic = pics[name];
    for (var i=0; i < pic.length; i++) {
        var elem = document.getElementById("photoLink_" + i);     
        elem.style.color = i == index ? 'black': 'blue'; 
    }
}