var ProgressBarList=new Array();

function ProgressBar(bar,stat,percent_only){
  this.index=ProgressBarList.length;
  ProgressBarList[this.index]=this;
  this.totalBytes=1;
  this.uploadedBytes=0;
  this.statusEl=stat;
  this.percent_only=percent_only;
  this.progressEl=bar;
  this.waiting=1;
  this.done=0;
  this.waitTimeout=10;
  this.abortProgress=false;
  var instance=this;
//  this.timeOut=window.setTimeout("ProgressBarList["+this.index+"].refresh('');",500);
  ajaxCallFunction('ajax.iml?mdl=progress.aj&'+Date(),function(sc,st,rt,rxml){ instance.update(rxml); });
}

ProgressBar.prototype.abort=function(){
  this.abortProgress=true;
  window.clearTimeout(this.timeOut);
}
ProgressBar.prototype.update=function(rxml){
   if(this.abortProgress) return;
   var status=getTagValue(rxml,'status');
   if(status=='wait'){
     this.waiting=1;
     this.waitTimeout--;
     this.done=0;
     if(this.statusEl) 
	   if(this.percent_only) this.statusEl.innerHTML="0%";
	   else this.statusEl.innerHTML="Waiting...";
     if(this.progressEl) this.progressEl.style.width="0px";
   }else if(status=='done'){
     this.waiting=0; this.done=1;
     if(this.statusEl)
	   if(this.percent_only) this.statusEl.innerHTML="100%";
	   else this.statusEl.innerHTML="Done!";
     if(this.progressEl) this.progressEl.style.width="100%";
   }else{
     this.totalBytes=getTagValue(rxml,'total')*1;
     this.uploadedBytes=getTagValue(rxml,'current')*1;
     if(this.totalBytes==0)this.totalBytes=1;
     if(this.uploadedBytes>this.totalBytes) this.uploadedBytes=this.totalBytes;     
     var percent=Number(this.uploadedBytes/this.totalBytes*100).toFixed(1);
     if(this.statusEl)
  	   if(this.percent_only) this.statusEl.innerHTML=percent+"%";
	   else{
        var dis=this.totalBytes;
        var suf="Bytes";
        if(dis>1024){
          dis=Number(dis/1024).toFixed(1);
          suf="KB";          
        }
        if(dis>1024){
          dis=Number(dis/1024).toFixed(1);
          suf="MB";          
        }
        this.statusEl.innerHTML=percent+"% of "+dis+" "+suf;
       }
     percent=Number(percent).toFixed();
     if(this.progressEl) this.progressEl.style.width=percent+"%";
   }
   if(!this.done&&this.waitTimeout>0){
      this.timeOut=window.setTimeout("ProgressBarList["+this.index+"].refresh('"+status+"');",500);
  //  this.refresh(status);
   }  
}

ProgressBar.prototype.refresh=function(status){
   var instance=this;
   ajaxCallFunction('ajax.iml?mdl=progress.aj&status='+status+'&'+Date(),function(sc,st,rt,rxml){ instance.update(rxml); });
}