var n=0;
var toScroll="table";

if (navigator.appName == "Netscape") {

  	layerStyleRef="layer.";
  	layerRef="document.layers";
  	styleSwitch="";}

else{

  	layerStyleRef="layer.style.";
  	layerRef="document.all";
  	styleSwitch=".style";}
   
function showLayer(layerName){
  
  	eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="visible"');}
        

function hideLayer(layerName){

  	eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="hidden"');}  
  

	
function DreiFrames(URL1,F1,URL2,F2,URL3,F3){  
    parent.frames[F1].location.href=URL1;
    parent.frames[F2].location.href=URL2;   
    parent.frames[F3].location.href=URL3;
	}

function ZweiFrames(URL1,F1,URL2,F2){  
    parent.frames[F1].location.href=URL1;
    parent.frames[F2].location.href=URL2;   
	}
	
	
function check(){
	
	if (document.talkto.name.value=="Ihr Name" || document.talkto.name.value==""){
		alert("Bitte geben Sie Ihren Namen ein !");
		document.talkto.name.focus();
		return false;
	}
	
	if (document.talkto.email.value=="Ihre E-Mail Adresse" || document.talkto.email.value=="" || document.talkto.email.value.indexOf('@', 0) == -1 || document.talkto.email.value.indexOf('.') == -1){
		alert("Bitte geben Sie eine gültige Email-Adresse ein !");
		document.talkto.email.focus();
		return false;
	}
			
	if (document.talkto.comment.value=="Ihre Nachricht für uns..." || document.talkto.comment.value==""){
		alert("Bitte geben Sie eine Nachricht ein !");
		document.talkto.comment.focus();
		return false;
	}
	return true ;
} 


function checkNum(zahl,wert){

   if(isNaN(zahl) == true){
	    alert("Das Feld: "+wert+" muß eine Zahl enthalten !");
	    return false;
   }
   return true;
} 


if (navigator.appName=='Microsoft Internet Explorer' && navigator.appVersion.indexOf("3.0")>=0) {
} else {
picked = 0;
pickedname = "";
imageSubdirectory = "navimg/";
offSuffix         = "a";
onSuffix          = "b";
pickSuffix        = "b";
fileSuffix        = ".gif";}

function gArray(size) {
                this.length = size;
                for (var i = 1;i<= size; i++){
                this[i] = ""}
                return this;
        } 
        
function gButton(width,height,name,statusText) {
  this.width = width;
  this.height = height;
  this.name = name;
  this.off = new Image (width, height);
  this.off.src = imageSubdirectory + name + offSuffix + fileSuffix;
  this.on = new Image (width, height);
  this.on.src = imageSubdirectory + name + onSuffix + fileSuffix;
  this.pick = new Image (width, height);
  this.pick.src = imageSubdirectory + name + pickSuffix + fileSuffix;
  this.statusText = statusText;
}


function doClick(gname)
{
  if (gname != pickedname) {
    if (gname == "") {
         // Turn all the icons off!
          for (var i = 1; i <= gButtons.length; i++) {
             msg = "document." + gButtons[picked].name + ".src = gButtons[picked].off.src"
             eval(msg)
          }
          pickedname = ""
          picked = 0

    } else {
         for (var i = 1; i <= gButtons.length; i++) {
            if (gname == gButtons[i].name) {
                var msg = "document." + gname + ".src = gButtons[i].pick.src"
                eval(msg)
                if (picked > 0){
                    msg = "document." + gButtons[picked].name + ".src = gButtons[picked].off.src"
                    eval(msg)
                    }
                picked = i
                pickedname = gname
                break
            }
        }
     }
  }
}

function doMouseOver(gname) {
  if (gname != pickedname) {
    for (var i = 1; i <= gButtons.length; i++) {
            if (gname == gButtons[i].name) {
                var msg = ""
                msg = "document." + gname + ".src = gButtons[i].on.src"
                eval(msg)
                window.status = gButtons[i].statusText
                break
            }
        }
  }
  return true
} 

function doMouseOut(gname) {
  if (gname != pickedname) {
    for (var i = 1; i <= gButtons.length; i++) {
            if (gname == gButtons[i].name) {
                var msg = ""
                msg = "document." + gname + ".src = gButtons[i].off.src"
                eval(msg)
                window.status = ""
                break
            }
        }
  }else{
    for (var i = 1; i <= gButtons.length; i++) {
            if (gname == gButtons[i].name) {
                var msg = ""
                msg = "document." + gname + ".src = gButtons[i].pick.src"
                eval(msg)
                break
                }
        }
  }
  return true
} 
  
var gButtons = new gArray(5) 
{
gButtons[1] = new gButton( 120, 25, "but1", "E-Commerce");
gButtons[2] = new gButton( 120, 25, "but2", "Content");
gButtons[3] = new gButton( 120, 25, "but3", "Education");
gButtons[4] = new gButton( 120, 25, "but4", "Company");
gButtons[5] = new gButton( 120, 25, "but5", "Contact");

}