ns4 = (document.layers)? true:false
  ie4 = (document.all)? true:false
  ie5 = ( document.all &&  document.getElementById)? true:false
  

function show() {//alert('show:'+arguments[0]);
  var i,id;
  for (i=0;i<arguments.length;i++) {
    id=arguments[i];  //alert("id:"+id);
/*    
    if (ns4) document.layers[id].visibility = "show"
    if (ns6) document.getElementById(id).style.visibility = "visible" 
    if (ie4) document.all[id].style.visibility = "visible"
    if (ie5) document.getElementById(id).style.visibility = "visible"
*/    
    if (ns4) document.layers[id].visibility = "show"
    else if (ie4) document.all[id].style.visibility = "visible"
  }
}

function hide() {//alert('hide:'+arguments[0]);
  var i,id;
  for (i=0;i<arguments.length;i++) {
    id=arguments[i];  //alert("id:"+id);
/*    
    if (ns4) document.layers[id].visibility = "hide"
    if (ns6) document.getElementById(id).style.visibility = "hidden"
    if (ie4) document.all[id].style.visibility = "hidden"
    if (ie5) document.getElementById(id).style.visibility = "hidden"
*/    
  }
}
/*
  ns4 = (document.layers)? true:false
  ns6 = (!document.all &&  document.getElementById)? true:false
  ie4 = ( document.all && !document.getElementById)? true:false
  ie5 = ( document.all &&  document.getElementById)? true:false
  if (ie5) {
     var version = 5
  }
  else {
     var version = (parseInt(navigator.appVersion));
  }    
*/

function layerwrite(id,nestref,text){ //alert("layerwrite:"+id+","+text);
  if (ns4) {
      if (nestref) {
        var lyr = eval('document.'+nestref+'.document.'+id+'.document')
      }
      else {
        var lyr = document.layers[id].document;//alert(lyr);
      }
      lyr.open();
      lyr.write(text);
      lyr.close()
      }
   else if (ie4) { //alert("layerwrite:"+id+","+text);
     document.all[id].innerHTML = text;
   }
}

function getcss(browser) {
	if (!browser) {
      if (navigator.platform.indexOf('Mac') > -1) { //mac
        if (navigator.appName.indexOf('Microsoft') > -1) {//explorer
          return "<link rel='stylesheet' href='stylesheet_mac.css'>";
        } 
		else {//netscape
          return "<link rel='stylesheet' href='stylesheet1_mac.css'>";
        }
      }
	  else {//windows or unix
        if (navigator.appName.indexOf('Microsoft') > -1) {//explorer
          return "<link rel='stylesheet' href='stylesheet_pc.css'>";
        } 
		else {//netscape
          return "<link rel='stylesheet' href='stylesheet1_pc.css'>";
        }
      }
    }
}


function setBGColor(id,netref,color) {
  if (ns4) {
    var lyr = (nestref)? eval('document.'+nestref+'.document.'+id):document.layers[id]
	lyr.document.bgColor = color
  }
  else if (ie4) {
    document.all[id].style.backgroundColor = color  
  }
}

function mytextColor(color) {
  layerWrite('mytext',null,'<span class="'+color+'">My Text</SPAN>')
}

/*function nyside(x){
  window.open(x,'nyside','top=20,left=20,width=760,height=530,scrollbars=yes')
}	

function nysidevejl(x){
  window.open(x,'nyside','top=10,left=10,width=790,height=530,scrollbars=yes,toolbar=yes')
}	


function nysidesmall(x){
  window.open(x,'nyside','top=20,left=20,width=440,height=420,scrollbars=no')
}	

function bestilbog(x){
  window.open(x,'nyside','top=20,left=20,width=440,height=570,scrollbars=no')
}	


function nyheder(){
  window.open('nyheder.html','nyheder','width=680,height=530')
}*/