function checkBrowser() {

    this.ver = navigator.appVersion
    this.dom = document.getElementById?1:0
    this.ie5 = (this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;
    this.ie4 = (document.all && !this.dom)?1:0;
    this.ns5 = (this.dom && parseInt(this.ver) >= 5) ?1:0;
    this.ns4 = (document.layers && !this.dom)?1:0;
    this.bw = (this.ie5 || this.ie4 || this.ns4 || this.ns5)

    return this

}

bw = new checkBrowser()

function showhide(div, nest) {


    obj = bw.dom?document.getElementById(div).style:bw.ie4?document.all[div].style:bw.ns4?nest?document[nest].document[div]:document[div]:0;
    nav_image = 'nav_image_' + div
    
    if (obj.display == 'block' || obj.display == 'block') {
    
	obj.display = 'none'
	document.images[nav_image].src = '/fileadmin/template/main/images/nav_plus.png'
        setcookie(div, "hide");
	
    } else {
    
	obj.display = 'block'
	document.images[nav_image].src = '/fileadmin/template/main/images/nav_minus.png'
        setcookie(div, "show");

    }

}

function show(div, nest) {

    obj = bw.dom?document.getElementById(div).style:bw.ie4?document.all[div].style:bw.ns4?nest?document[nest].document[div]:document[div]:0;
    obj.display = 'block'
    nav_image = 'nav_image_' + div
    document.images[nav_image].src = '/fileadmin/template/main/images/nav_minus.png'
    setcookie(div, "show");

}

function hide(div, nest) {

    obj = bw.dom?document.getElementById(div).style:bw.ie4?document.all[div].style:bw.ns4?nest?document[nest].document[div]:document[div]:0;
    obj.display = 'none'
    nav_image = 'nav_image_' + div
    document.images[nav_image].src = '/fileadmin/template/main/images/nav_plus.png'
    setcookie(div, "hide");

}

function setcookie(name, value) {

    var cookiename = name.replace(/ /g, "_");
    var cookiedata = cookiename + '=' + value + '; expires=Mon, 1 Jan 2010 00:00:00 UTC';
	
    document.cookie = cookiedata;

}