function displayLrgImg(imgId, currentName) {

	if (eval(currentName) == undefined)
		eval(currentName + ' = \'img0\'');

	var currentImgId = eval(currentName);

	if (currentImgId != imgId) {
		opacityTweenIn = new OpacityTween(document.getElementById(imgId),Tween.regularEaseOut, 0, 100, 2); 
		opacityTweenIn.start();

		if (currentImgId != '') {
			opacityTweenOut = new OpacityTween(document.getElementById(currentImgId),Tween.regularEaseOut, 100, 0, 2); 
			opacityTweenOut.start();
		}		
	}

	eval(currentName + ' = \'' + imgId + '\'');
}