var xMousePos = new Number();
 xMousePos = 400;
 curDepth = 0;
 var tree = new String;
 tree = 'backgroundImage';


 function logMouseMove(){
   xMousePos = window.event.x;
 }

 function initPage(){
   scroller();
 }
       
 function scroller(){
   if( xMousePos <100){
     scrollMainScreen(12);
   }else if( xMousePos > (document.body.clientWidth - 100)){
     scrollMainScreen(-12);
   }

   a = setTimeout("scroller()",120);
 }

 function scrollMainScreen (rc){
   var backgroundImage = new Object();
   var msLeft = new Number();
   backgroundImage = document.getElementById("backgroundImage");
   
   document.pageOffset = window.pageXOffset
   sPx = mainscreen.style.left;
   if( sPx.indexOf("px") != -1 )
     sPx = sPx.substr(0, sPx.length -2);

   msLeft = sPx * 1;
   msLeft += rc;

   if (msLeft > 800 - backgroundImage.width && msLeft<0)
     mainscreen.style.left = msLeft;
   }

 function showAnimation(imageName, sFile){

   if(imageName !="" && event.srcElement.id != "backgroundImage"){
     var tmpImage = document.images[imageName];
     if( tmpImage.src.indexOf("blank.gif") != -1)
       tmpImage.src = "images/animaties/" + sFile;
       
     document.getElementById(imageName).style.visibility = "visible";
   }

   if(imageName =="" && event.srcElement.id == "backgroundImage")
     clearAllImages();

 }

 function clearAllImages(){
 
   for( img=0;img<document.all.tags("DIV").length;img++){
      var oImg = document.all.tags("DIV")[img];
      if(oImg.id != "mainscreen")
       oImg.style.visibility = 'hidden';
   }
 }