var aryImages = new Array(2);

function loadImages() {
	aryImages[0] = "open.gif";
	aryImages[1] = "closed.gif";

	for (i=0; i < aryImages.length; i++) {
		var preload = new Image();
		preload.src = aryImages[i];
	}
}

function showdiv(divName) {
	var myDiv = document.getElementById(divName);
	if (myDiv == null) return;
	if (myDiv.style.display == "block") {
		myDiv.style.display = "none";
	}	
	else {
		myDiv.style.display = "block";
	}
}

function swap(imgName, divname) {
	var myImg = document.getElementById(imgName);
	if (myImg == null) return;
	if (myImg.src.indexOf(aryImages[0]) >= 0) {
		myImg.src = aryImages[1];
	}
	else {
		myImg.src = aryImages[0];
	}	
	
	showdiv(divname);
}

function hide() {

	var images = document.getElementsByTagName("img");
	var image;
	var angebotIndex;

	var divs = document.getElementsByTagName("div");
	var div;
	
	for (i = 0; i < divs.length; i++) {
		div = divs.item(i);
		if (div.id != 'angebot') {
			swap('img' + (i + 1), div.id);
		}
	}

	
	for (i = 0; i < images.length; i++) {
		image = images.item(i);
		
		if ((image.src.indexOf("open.gif") > 0) && (image.name != 'img2')) {
			swap(image.name);
		}
	}
	
}