/*
 * Slide show TGPs pictures to preview video
 * Mathieu Imbert
 * 08/10/2008
 */

var videoPreviewArray = new Array("1", "3", "5", "7", "9", "11", "12");
var arrayIdx = 0;
var previewStarted = false;
var videoPreviewInterval;
var currentImageObject = '';

function initVideoPreview(imgOb, vnum) {
	
	if (previewStarted == false) {
		currentImageObject = imgOb;
		arrayIdx = 0;
		previewStarted = true;
		videoPreviewInterval = setInterval("previewVideo()", 500);
	}
}

function previewVideo(vnum) {

	arrayIdx = (arrayIdx + 1) % videoPreviewArray.length;
	imgUrl = currentImageObject.src
	myRegExp = new RegExp("[0-9]+\.jpg");
	newUrl = imgUrl.replace(myRegExp, videoPreviewArray[arrayIdx] + ".jpg");

	currentImageObject.setAttribute("src",newUrl);
}

function stopVideoPreview() {

	clearInterval(videoPreviewInterval);

	previewStarted = false;
}