/////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
  //  ALTTXT V1.2
  //  BY: BRIAN GOSSELIN OF SCRIPTASYLUM.COM
  //  ADDED FADING EFFECT FOR IE4+ AND NS6+ ONLY AND OPTIMIZED THE CODE A BIT.
  //  SCRIPT FEATURED ON DYNAMIC DRIVE (http://www.dynamicdrive.com) 
  
  
  var dofade=true;     // ENABLES FADE-IN EFFECT FOR IE4+ AND NS6 ONLY
  var center=false;     // CENTERS THE BOX UNER THE MOUSE, OTHERWISE DISPLAYS BOX TO THE RIGHT OF THE MOUSE
  var centertext=false; // CENTERS THE TEXT INSIDE THE BOX. YOU CAN'T SIMPLY DO THIS VIA STYLE BECAUSE OF NS4.
                       // OTHERWISE, TEXT IS LEFT-JUSTIFIED. 
  
  
  ////////////////////////////// NO NEED TO EDIT BEYOND THIS POINT //////////////////////////////////////
  
  var NS4 = (navigator.appName.indexOf("Netscape")>=0 && !document.getElementById)? true : false;
  var IE4 = (document.all && !document.getElementById)? true : false;
  var IE5 = (document.getElementById && document.all)? true : false;
  var NS6 = (document.getElementById && navigator.appName.indexOf("Netscape")>=0 )? true: false;
  var W3C = (document.getElementById)? true : false;
  var w_y, w_x, navtxt, boxheight, boxwidth;
  var ishover=false;
  var isloaded=false;
  var ieop=0;
  var op_id=0;
  
  function getwindowdims(){
  w_y=(NS4||NS6)? window.innerHeight : (IE5||IE4)? document.body.clientHeight : 0;
  w_x=(NS4||NS6)? window.innerWidth : (IE5||IE4)? document.body.clientWidth : 0;
  }
  
  function getboxwidth(){
  if(NS4)boxwidth=(navtxt.document.width)? navtxt.document.width : navtxt.clip.width;
  if(IE5||IE4)boxwidth=(navtxt.style.pixelWidth)? navtxt.style.pixelWidth : navtxt.offsetWidth;
  if(NS6)boxwidth=(navtxt.style.width)? parseInt(navtxt.style.width) : parseInt(navtxt.offsetWidth);
  }
  
  function getboxheight(){
  if(NS4)boxheight=(navtxt.document.height)? navtxt.document.height : navtxt.clip.height;
  if(IE4||IE5)boxheight=(navtxt.style.pixelHeight)? navtxt.style.pixelHeight : navtxt.offsetHeight;
  if(NS6)boxheight=parseInt(navtxt.offsetHeight);
  }
  
  function movenavtxt(x,y){
  if(NS4)navtxt.moveTo(x,y);
  if(W3C||IE4){
  navtxt.style.left=x+'px';
  navtxt.style.top=y+'px';
  }}
  
  function getpagescrolly(){
  if(NS4||NS6)return window.pageYOffset;
  if(IE5||IE4)return document.body.scrollTop;
  }
  
  function getpagescrollx(){
  if(NS4||NS6)return window.pageXOffset;
  if(IE5||IE4)return document.body.scrollLeft;
  }
  
  function writeindiv(text){
  if(NS4){
  navtxt.document.open();
  navtxt.document.write(text);
  navtxt.document.close();
  }
  if(W3C||IE4)navtxt.innerHTML=text;
  }
  
  //**** END UTILITY FUNCTIONS ****//
  
  function writetxt(text){
  if(isloaded){
  if(text!=0){
  ishover=true;
  if(NS4)text='<div class="navtext">'+((centertext)?'<center>':'')+text+((centertext)?'</center>':'')+'</div>';
  writeindiv(text);
  getboxheight();
  if((W3C || IE4) && dofade){
  ieop=0;
  incropacity();
  }}else{
  if(NS4)navtxt.visibility="hide";
  if(IE4||W3C){
  if(dofade)clearTimeout(op_id);
  navtxt.style.visibility="hidden";
  }
  writeindiv('');
  ishover=false;
  }}}
  
  function incropacity(){
  if(ieop<=100){
  ieop+=7;
  if(IE4 || IE5)navtxt.style.filter="alpha(opacity="+ieop+")";
  if(NS6)navtxt.style.MozOpacity=ieop/100;
  op_id=setTimeout('incropacity()', 50);
  }}
  
  function moveobj(evt){
  if(isloaded && ishover){
  margin=(IE4||IE5)? 1 : 23;
  if(NS6)if(document.height+27-window.innerHeight<0)margin=15;
  if(NS4)if(document.height-window.innerHeight<0)margin=10;
  //mx=(NS4||NS6)? evt.pageX : (IE5||IE4)? event.clientX : 0;
  //my=(NS4||NS6)? evt.pageY : (IE5||IE4)? event.clientY : 0;
  if (NS4){
  mx=evt.pageX
  my=evt.pageY
  }
  else if (NS6){
  mx=evt.clientX
  my=evt.clientY
  }
  else if (IE5){
  mx=event.clientX
  my=event.clientY
  }
  else if (IE4){
  mx=0
  my=0
  }
  
  if(NS4){
  mx-=getpagescrollx();
  my-=getpagescrolly();
  }
  xoff=(center)? mx-boxwidth/2 : mx+5;
  yoff=(my+boxheight+30-getpagescrolly()+margin>=w_y)? -15-boxheight: 30;
  movenavtxt( Math.min(w_x-boxwidth-margin , Math.max(2,xoff))+getpagescrollx() , my+yoff+getpagescrolly());
  if(NS4)navtxt.visibility="show";
  if(W3C||IE4)navtxt.style.visibility="visible";
  }}
  
  if(NS4)document.captureEvents(Event.MOUSEMOVE);
  document.onmousemove=moveobj;
  window.onload=function(){
    navtxt=(NS4)? document.layers['navtxt'] : (IE4)? document.all['navtxt'] : (W3C)? document.getElementById('navtxt') : null;
    getboxwidth();
    getboxheight();
    getwindowdims();
    isloaded=true;
    if((W3C || IE4) && centertext)navtxt.style.textAlign="center";
    if(W3C)navtxt.style.padding='4px';
    if(IE4 || IE5 && dofade)navtxt.style.filter="alpha(opacity=0)";
    }
  window.onresize=getwindowdims;