//Funktion zum Wechseln der Produktbilder
var counter1 = 1, counter2 = 2, counter3 = 3, counter4 = 4;
var no_images = 15;
function nextImage()
{
	counter1 ++;
	counter2 ++;
	counter3 ++;
	counter4 ++;
	if(counter1 > no_images)
		counter1 = 1;
	if(counter2 > no_images)
		counter2 = 1;
	if(counter3 > no_images)
		counter3 = 1;
	if(counter4 > no_images)
		counter4 = 1;
		
	document.img_1.src="images/diashow/thumbs/img_"+counter1+".jpg";	
	document.img_2.src="images/diashow/thumbs/img_"+counter2+".jpg";	
	document.img_3.src="images/diashow/thumbs/img_"+counter3+".jpg";	
	document.img_4.src="images/diashow/thumbs/img_"+counter4+".jpg";	
}

//zoomen des ausgewählten Bildes
function zoomSelectedImage(image)
{
	var path;
	if(image == 1)
		path = "img_"+counter1+".jpg";
	if(image == 2)
		path = "img_"+counter2+".jpg";
	if(image == 3)
		path = "img_"+counter3+".jpg";
	if(image == 4)
		path = "img_"+counter4+".jpg";
		
	path = "images/diashow/details/"+path;
	document.img_main_middle.src=path;
}