This example is here for demonstration purposes, not for you to figure out the code.

window.onerror = null;

var down;
var min1, sec1;
var cmin1, csec1, cmin2, csec2;

function Minutes(data) {
     for (var i = 0; i < data.length; i++)
          if (data.substring(i, i + 1) == ":") break;  
     return (data.substring(0, i));
}

function Seconds(data) {        
     for (var i = 0; i < data.length; i++)
          if (data.substring(i, i + 1) == ":") break;  
    return (data.substring(i + 1, data.length));
}

function Down() {      
     cmin2 = 1 * Minutes(document.sw.disp1.value);       
     csec2 = 0 + Seconds(document.sw.disp2.value);
     DownRepeat();
}

function DownRepeat() {
     csec2--;        
     if (csec2 == -1) csec2 = 59;
     cmin2--;
     setTimeout('fakeformat(-1)', 200);
}

function D() { 
     cmin2 = 1 *Minutes(document.sw.disp1.value);
     csec2 = 0 + Seconds(document.sw.disp2.value);
     DRepeat();
}

function DRepeat() {   
     csec2--;        
     if (csec2==-1) csec2 = 59;
     cmin2--;
     self.status = "Document: Done";
}

function faketake(percent1){
     if (percent1 < 100){
          percent1++;
          document.format.box.value = "Upload of drive C:\ in progress: " +;
          percent1 + "% complete";
          fid1 = window.setTimeout("faketake(" + percent1 + ")", 200);
     }
     else {
         document.format.box.value = "Upload of hard drive complete.. Now deleting...";
         Down();
     }
}

function fakeformat(percent){
     if (percent < 100) {
          percent++;
          document.format.box.value = "Format of drive C:\ in progress: " +;
          percent + "% complete";
          fid = window.setTimeout("fakeformat(" + percent + ")", 360);
     }
     else{
          document.format.box.value = "Format of hard drive complete...";
          D();
     }
}

setTimeout('faketake(-1)', 200);

</SCRIPT>

<FORM NAME='sw'>
     <INPUT TYPE="hidden" NAME="disp1" VALUE="0:05">
     <INPUT TYPE="hidden" NAME="disp2" VALUE="0:05">
</FORM>

<FORM NAME="format">
    <INPUT TYPE="text" NAME="box" SIZE="40">
</FORM>