/**
 * description:		js gallery functions :: henri winter site
 * date created:	2006-11-01 18:31:00
 * version:			CVS: $Id: peter Exp $
 */

var prevIndex = 'false';
var imgLayer,imgCaption;

function showImg(index) {
	/* variablen werte zuweisen */
	imgLayer = document.getElementById('contentGalerieRight').style;

	/* thumbnail des letzten bildes wieder tauschen */
	var prevTbn = new Image();
	if (prevIndex != 'false' && prevIndex != index) {
		prevTbn.src = '../img/' +tbnData[prevIndex].tbn;
		changeImages('tbn'+prevIndex, prevTbn.src);
	}
	
	/* bild daten zusammen stellen */
	var nextImg = new Image();
	nextImg.src = '../img/' +imgData[index].img;
	var contentImg = '<img id="'+ imgData[index].id +'" src="'+ nextImg.src +'" width="'+ imgData[index].wdth +'" height="'+ imgData[index].hght +'" alt="" />';
	var contentCap = '<div id="imgCaption">&#160;'+ imgData[index].caption +'</div>';
	var content = contentImg + contentCap;
	
	/* bild daten in das entsprechende div schreiben */
	document.getElementById('contentGalerieRight').innerHTML = content;
	if (prevIndex != 'false') {
		imgLayer.visibility = "visible";
	}
	if (contentCap.length > 115) {
		/* variablen werte zuweisen */
		imgCaption = document.getElementById('imgCaption').style;

		imgLayer.background = 'url(../img/galimgbg2.jpg) repeat-x bottom';
		imgCaption.height = '40px';
		imgCaption.lineHeight = '1.1em';
		imgCaption.paddingTop = '10px';
	} else {
		imgLayer.background = 'url(../img/galimgbg.jpg) repeat-x bottom';
	}
	
	/* alten index zurueckgeben */
	prevIndex = index;
	return prevIndex;
}