var tmr;
var t;
var obj;
function sFa() {
obj = gObj();
sLft();
shw(true);
t = 0;
sTmr();
}
function hFa() {
t = -100;
sTmr();
return false;
}
function sTmr() {
tmr = setInterval("fd()",20);
}
function fd() {
var amt = Math.abs(t+=10);
if(amt == 0 || amt == 100) clearInterval(tmr);
amt = (amt == 100)?99.999:amt;
  	
obj.style.filter = "alpha(opacity:"+amt+")";
obj.style.KHTMLOpacity = amt/100;
obj.style.MozOpacity = amt/100;
obj.style.opacity = amt/100;
if(amt == 0) shw(false);
}
function sLft() {
var w = 170;	// set this to 1/2 the width of the faw div defined in the style sheet 
// there's not a reliable way to retrieve an element's width via javascript!!
var l = (document.body.innerWidth)? document.body.innerWidth / 2:document.body.offsetWidth / 2;
obj.style.left = (l - w)+"px";
}
function gObj() {
return document.getElementById("faw");	
}
function shw(b) {
(b)? obj.className = 'show':obj.className = '';	
}