var DHTML = (document.getElementById || document.all); //geen Netscape 4
var screensize = 0; //geeft drie schermformaten weer: 800, 1024 en 1280
var js_size_bestand="";
var css_file_for_size="";
var js_size_bestand_to_write="";
var css_file_for_size_write_string="";



function show(name)
{
	if (!DHTML) return;
	{
		var x = getObj(name);
		x.visibility = 'visible';
	}
}

function hide(name)
{
	if (!DHTML) return;
	{
		var x = getObj(name);
		x.visibility = 'hidden';
	}
}

function getObj(name)
{
  if (document.getElementById)
  {
    return document.getElementById(name).style;
  }
  else if (document.all)
  {
    return document.all[name].style;
  }
  else return false;
}

function detectscreensize() {
if (screen.width>=1280&&screen.height>=1024) {
screensize=1280;
}
else if (screen.width>=1024&&screen.height>=768) {
screensize=1024;
}
else {
screensize=800;
}
}

function writeimage(imagename) {
var imgagetowrite= '<img src="' +imagename+'"></img>';
document.write(imgagetowrite);
}

function writefilestoload(size) {
   if (size==1280) {
      js_size_bestand='javascript/1280.js';
      css_file_for_size='css/1280.css';
      //js_size_bestand='javascript/800.js';
      //css_file_for_size='css/800.css';
   }
   if (size==1024) {
      js_size_bestand='javascript/1024.js';
      css_file_for_size='css/1024.css';
   }
   if (size==800) {
      js_size_bestand='javascript/800.js';
      css_file_for_size='css/800.css';
   }   
   js_size_bestand_to_write =String.fromCharCode(60) + 'script type="text/javascript" src="' + js_size_bestand+'">' + String.fromCharCode(60)+'/script>';
   css_file_for_size_write_string=String.fromCharCode(60)+'link href="'+css_file_for_size+'" rel="stylesheet" type="text/css" />';
   document.write(js_size_bestand_to_write);
   document.write(css_file_for_size_write_string);  
   //alert(js_size_bestand_to_write);
   //alert(css_file_for_size_write_string);  
}

function enlargescreen() {
window.moveTo(0,0); 
if (document.all) { 
top.window.resizeTo(screen.availWidth,screen.availHeight); 
} 
else if (document.layers||document.getElementById) { 
if (top.window.outerHeight<screen.availHeight||top.window.outerWidth<screen.availWidth){ 
top.window.outerHeight = screen.availHeight; 
top.window.outerWidth = screen.availWidth; 
}}
}