var a=new Array(7);
var win=null;
var gewijzigd = true;

function preloadmyimg() {
for (i = 1; i <= 6; i++) {
if (document.images) {
a[i] = new Image();
a[i].src = "images/menu_button_"+i+"a.gif";
}}}

function mymenu(x) {
myname = "button"+x;
document.all[myname].src = "images/menu_button_"+x+"a.gif";
}

function mymenuo(x) {
myname="button"+x;
document.all[myname].src = "images/menu_button_"+x+".gif";
}

var win=null;
var myname="popup";
var scroll="no";
var pos="center";

function popup(mypage,w,h){
if(pos=="random"){LeftPosition=(screen.width)?Math.floor(Math.random()*(screen.width-w)):100;TopPosition=(screen.height)?Math.floor(Math.random()*((screen.height-h)-75)):100;}
if(pos=="center"){LeftPosition=(screen.width)?(screen.width-w)/2:100;TopPosition=(screen.height)?(screen.height-h)/2:100;}
else if((pos!="center" && pos!="random") || pos==null){LeftPosition=0;TopPosition=20}
settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=no';
win=window.open(mypage,myname,settings);}

function popup_scroll(mypage,w,h){
if(pos=="random"){LeftPosition=(screen.width)?Math.floor(Math.random()*(screen.width-w)):100;TopPosition=(screen.height)?Math.floor(Math.random()*((screen.height-h)-75)):100;}
if(pos=="center"){LeftPosition=(screen.width)?(screen.width-w)/2:100;TopPosition=(screen.height)?(screen.height-h)/2:100;}
else if((pos!="center" && pos!="random") || pos==null){LeftPosition=0;TopPosition=20}
settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars=yes,location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=no';
win=window.open(mypage,myname,settings);}