nereidFadeObjects  =  new  Object();
nereidFadeTimers  =  new  Object();
function  nereidFade(object,  destOp,  rate,  delta){
if  (!document.all)
return
        if  (object  !=  "[object]"){    file://do  this  so  I  can  take  a  string  too
                setTimeout("nereidFade("+object+","+destOp+","+rate+","+delta+")",0);
                return;
        }
        clearTimeout(nereidFadeTimers[object.sourceIndex]);
        diff  =  destOp-object.filters.alpha.opacity;
        direction  =  1;
        if  (object.filters.alpha.opacity  >  destOp){
                direction  =  -1;
        }
        delta=Math.min(direction*diff,delta);
        object.filters.alpha.opacity+=direction*delta;
        if  (object.filters.alpha.opacity  !=  destOp){
                nereidFadeObjects[object.sourceIndex]=object;
                nereidFadeTimers[object.sourceIndex]=setTimeout("nereidFade(nereidFadeObjects["+object.sourceIndex+"],"+destOp+","+rate+","+delta+")",rate);
        }
}



//js获取url参数的function
function request(paras){ 
var url = location.href;   
var paraString = url.substring(url.indexOf("?")+1,url.length).split("&");   
var paraObj = {}   
for (i=0; j=paraString[i]; i++){   
paraObj[j.substring(0,j.indexOf("=")).toLowerCase()] = j.substring(j.indexOf 
("=")+1,j.length);   
}   
var returnValue = paraObj[paras.toLowerCase()];   
if(typeof(returnValue)=="undefined"){   
return "";   
}else{   
return returnValue;   
}   
} 
var theurl 
theurl=request("url"); 
if (theurl!=''){ 
location=theurl 
} 



function getScroll() {
var t, l, w, h;
if (document.documentElement && document.documentElement.scrollTop) {
t = document.documentElement.scrollTop;
l = document.documentElement.scrollLeft;
w = document.documentElement.scrollWidth;
h = document.documentElement.scrollHeight;
}
else if (document.body) {
t = document.body.scrollTop;
l = document.body.scrollLeft;
w = document.body.scrollWidth;
h = document.body.scrollHeight;
}
return { t: t, l: l, w: w, h: h };
}