function ChangePic(imgName,obj){
    if(navigator.appName != "Microsoft Internet Explorer"){
      document.getElementById(obj).src="images/"+imgName;
    }else{
      document.frmHome.elements[obj].src="images/"+imgName;
    }
  }



  function HM_RollOver(obj,state,showLyr){
    if(showLyr){
      if(state==2){
        hideAll();
        showLayer('lyr'+obj);
        stopTime();
      }else{
        startTime();
      }
    }
  }

   //Define global variables
    var timerID = null;
    var timerOn = false;
    var timecount = 500;
    // Change this to the time delay that you desire
    var what = null;
    var newbrowser = true;
    var check = false;


    var winW = 0, winH = 0;
    function GetWindowSize(){
      if (parseInt(navigator.appVersion)>3) {
       if (navigator.appName=="Netscape") {
        winW = window.innerWidth;
        winH = window.innerHeight;
       }
       if (navigator.appName.indexOf("Microsoft")!=-1) {
        winW = document.body.offsetWidth;
        winH = document.body.offsetHeight;
       }
      }
    }

    function CorrectLayerPosition(){
      //NetScape and Firefox Layer Functions
      GetWindowSize();
      if(winW > 780){
        winW=(winW-780)/2;
      }else{
        winW=0;
      }

      if(navigator.appName != "Microsoft Internet Explorer"){
        document.getElementById('lyrAboutUs').style.left = 137+winW;
        document.getElementById('lyrProducts').style.left = 234+winW;
        document.getElementById('lyrFreeTrial').style.left = 338+winW;
        //document.getElementById('lyrLinks').style.left = 439+winW;
        document.getElementById('lyrNewsEvents').style.left = 542+winW;

      }else{//IE Functions
        document.all.lyrAboutUs.style.left=129+winW;
        document.all.lyrProducts.style.left=225+winW;
        document.all.lyrFreeTrial.style.left=330+winW;
        //document.all.lyrLinks.style.left=430+winW;
        document.all.lyrNewsEvents.style.left=532+winW;
      }
    }

    function reDo() {
      CorrectLayerPosition();
    }

    window.onresize = reDo;


    function init() {
      if (document.layers) {
       layerRef="document.layers";
       styleSwitch="";
       visibleVar="show";
       screenSize = window.innerWidth;
       what ="ns4";
      }
      else if(document.all) {
       layerRef="document.all";
       styleSwitch=".style";
       visibleVar="visible";
       screenSize = document.body.clientWidth + 18;
       what ="ie4";
      }
      else if(document.getElementById) {
       layerRef="document.getElementByID";
       styleSwitch=".style";
       visibleVar="visible";
       what="dom1";
      }
      else {
       what="none";
       newbrowser = false;
      }
      check = true;
    }


  // Toggles the layer visibility on
    function showLayer(layerName) {
      if(check) {
        if (what =="none") {
          return;
        }
      else if (what == "dom1") {
        document.getElementById(layerName).style.visibility="visible";
      }
      else {
        eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="visible"');
        }
      }
      else {
        return;
      }
    }

  // Toggles the layer visibility off
    function hideLayer(layerName) {
      if(check) {
        if (what =="none") {
          return;
        }else if (what == "dom1") {
          document.getElementById(layerName).style.visibility="hidden";
        }else {
          eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="hidden"');
        }
      }else {
        return;
      }
    }

   function hideAll() {
     hideLayer('lyrAboutUs');
     hideLayer('lyrProducts');
     hideLayer('lyrFreeTrial');
     //hideLayer('lyrLinks');
     hideLayer('lyrNewsEvents');
     CorrectLayerPosition();
   }

   function startTime() {
     if (timerOn == false) {
       timerID=setTimeout( "hideAll()" , timecount);
       timerOn = true;
     }
   }

   function stopTime() {
    if (timerOn) {
     clearTimeout(timerID);
     timerID = null;
     timerOn = false;
    }
   }

  init();