/* thumbchanger.js */
var picUrl, workUrl, picwidth, action;
var animation	= false;
var pic 		= 0;
var picMax 		= 5;
var viewId		= 0;
var intervalle	= 600; //in millisekunden

function startPicChange(xpic, xwidth, xid)
{// Animation aktivieren
	animation 	= true;
	picUrl		= xpic;
	picwidth	= xwidth;
	viewId		= xid;
	action 		= window.setTimeout('changePic()', 100);
}

function stopPicChange()
{// animation stoppen
	window.clearTimeout(action);
	animation 				= false;
	workUrl 				= picUrl + '.jpg?w='+ picwidth;
	$('pic'+ viewId).src 	= workUrl;
}

function changePic()
{
	//wenn action = true, starte Rotation
	if(animation)
	{
		pic++;
		if(pic > picMax)
		{
			pic = 1;
		}
		// bild url erstellen
		workUrl 				= picUrl + '_' + pic + '.jpg?w='+ picwidth;
		var picData 			= new Image();
		picData.src 			= workUrl;
		$('pic'+ viewId).src 	= picData.src;
		action = window.setTimeout('changePic()', intervalle);
	}
}