///////////////////////////////////////////////////////////////////////////////////////////////////////////// 
// 
//  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=true; // 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+=15; 
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=322 
my=-15 
} 

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;