if (document.images) {            
	navoff = new Image();
	navoff.src= "images/nv_top_lo.gif";
	navon = new Image();
	navon.src= "images/nv_top_hi.gif";

	jump_more_off = new Image();
	jump_more_off.src= "images/jump_more_lo.gif";
	jump_more_on = new Image();
	jump_more_on.src= "images/jump_more_hi.gif";

	nav_pfeil_off = new Image();
	nav_pfeil_off.src= "images/nav_pfeil_lo.gif";
	nav_pfeil_on = new Image();
	nav_pfeil_on.src= "images/nav_pfeil_hi.gif";

	dot_off = new Image();
	dot_off.src= "images/dot_lo.gif";
	dot_on = new Image();
	dot_on.src= "images/dot_hi.gif";

	dwl_pdf_off = new Image();
	dwl_pdf_off.src= "images/dwl_pdf_lo.gif";
	dwl_pdf_on = new Image();
	dwl_pdf_on.src= "images/dwl_pdf_hi.gif";


	print_off = new Image();
	print_off.src= "images/print_lo.gif";
	print_on = new Image();
	print_on.src= "images/print_hi.gif";

	tiff_off = new Image();
	tiff_off.src= "images/tiff_lo.gif";
	tiff_on = new Image();
	tiff_on.src= "images/tiff_hi.gif";

	jump_back_off = new Image();
	jump_back_off.src= "images/jump_back_lo.gif";
	jump_back_on = new Image();
	jump_back_on.src= "images/jump_back_hi.gif";

	jump_back2_off = new Image();
	jump_back2_off.src= "images/jump_back2_lo.gif";
	jump_back2_on = new Image();
	jump_back2_on.src= "images/jump_back2_hi.gif";

	jump_forth_off = new Image();
	jump_forth_off.src= "images/jump_forth_lo.gif";
	jump_forth_on = new Image();
	jump_forth_on.src= "images/jump_forth_hi.gif";


	preloaded = true;
}
function BrowserCheck() {
    var os= navigator.platform
    if (os.indexOf("Mac")!=-1) {
    	this.os = "mac"
    } else {
    	this.os = "pc"
    }
	var b = navigator.appName
	if (b=="Netscape") this.b = "ns"
	else if (b=="Microsoft Internet Explorer") this.b = "ie"
	else this.b = b
	this.v = parseInt(navigator.appVersion)
	this.ns = (this.b=="ns" && this.v>=4)
	this.ns4 = (this.b=="ns" && this.v==4)
	this.ns5 = (this.b=="ns" && this.v==5)
	this.ns6 = (this.b=="ns" && this.v==6)
	this.ie = (this.b=="ie" && this.v>=4)
	this.ie4 = (navigator.userAgent.indexOf('MSIE 4')>0)
	this.ie5 = (navigator.userAgent.indexOf('MSIE 5')>0)
	if (this.ie5) this.v = 5
	this.min = (this.ns||this.ie)
}

// automatically create the "is" object
is = new BrowserCheck()

function imgOn(imgName) {
	if (imgName != "") {
		if (preloaded) {
   			if (document.images) {
				document[imgName].src = navon.src;
			}
		}
	}
}
function imgOff(imgName) {
	if (imgName != stat) {
  		if (preloaded) {
        	if (document.images) {
       			document[imgName].src = navoff.src;
        	}
		}
	}
}
function imgHI(imgName) {

theIMG = imgName.substr(0,imgName.length-2);
	if (preloaded) {
		if (document.images) {
			document[imgName].src = eval(theIMG + "_on.src");
		}
	}
}
function imgLO(imgName) {
	if (preloaded) {
		if (document.images) {
			document[imgName].src = eval(theIMG + "_off.src");
		}
	}
}
function showIt(which,theLnk) {
	if (is.ie){
		obj = eval(which + 'Div.style');
		addleft = navDiv.offsetLeft;
		addtop = navDiv.offsetTop + 18;
	} else {
		obj = eval('document.getElementById("' + which + 'Div").style');
		addleft = document.getElementById("navDiv").offsetLeft;
		addtop = document.getElementById("navDiv").offsetTop + 18;

	}

	theLPos=document[which].offsetParent.offsetLeft + addleft;


	theTopPos=addtop;
	obj.left=theLPos + "px";
	obj.top=theTopPos + "px";

	imgOn(which);
	obj.visibility = "visible";

}

function hideIt(which) {
	if (is.ie){
		obj = eval(which + 'Div.style');
		obj.visibility = "hidden";
	} else {
		obj = eval('document.getElementById("' + which + 'Div").style');
		obj.visibility = "hidden";
	}
imgOff(which);
}