function checkit() {

alert('ist ok');

}


if (document.images) {

var N1_up = new Image()
N1_up.src = "imgall/menue/m01up.gif"

var N1_over = new Image()
N1_over.src = "imgall/menue/m01ov.gif" 

var N2_up = new Image()
N2_up.src = "imgall/menue/m02up.gif"

var N2_over = new Image()
N2_over.src = "imgall/menue/m02ov.gif" 

var N3_up = new Image()
N3_up.src = "imgall/menue/m03up.gif"

var N3_over = new Image()
N3_over.src = "imgall/menue/m03ov.gif" 

var N4_up = new Image()
N4_up.src = "imgall/menue/m04up.gif"

var N4_over = new Image()
N4_over.src = "imgall/menue/m04ov.gif" 

var N5_up = new Image()
N5_up.src = "imgall/menue/m05up.gif"

var N5_over = new Image()
N5_over.src = "imgall/menue/m05ov.gif" 

var N6_up = new Image()
N6_up.src = "imgall/menue/m06up.gif"

var N6_over = new Image()
N6_over.src = "imgall/menue/m06ov.gif" 


}


function swapImages(id,name){
  if (document.images) 

document.images[id].src=eval(name+".src");
}

// pfeil in der portfolioliste ein/ausblenden

function display_arrow(arrowid) {

var pa_arrow = ('pa' + arrowid);

document.getElementById(pa_arrow).style.visibility = 'visible';

}

function dont_display_arrow(arrowid) {

var pa_arrow = ('pa' + arrowid);

document.getElementById(pa_arrow).style.visibility = 'hidden';

}

// neues fenster zentriert
// Original:  Eric King (eric_andrew_king@hotmail.com)
// Web Site:  http://redrival.com/eak/
// This script and many more are available free online at
// The JavaScript Source!! http://javascript.internet.com


function NewWindow(url,url2) {
// alert(url2);
var winl = (screen.width - 739) / 2;
var wint = (screen.height - 436) / 2;
winprops = 'height='+436+',width='+739+',top='+wint+',left='+winl+',scrollbars='+'yes'+',resizable='+'0';

var all_examples = document.getElementsByName("example");

// alert(all_examples.length);
var anzahl_beispiele = all_examples.length;

// alert(anzahl_beispiele);

win = window.open(url+'?'+url2+','+anzahl_beispiele, 'pro_win', winprops)
if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }

}