t1 = new Array();
t2 = new Array();
countdown();


function setText(a, text)
 {
  document.getElementById(a).innerHTML=text;
 }

function Timer(sekunden, spanid)
 {
  t1[t1.length] = sekunden;
  t2[t2.length] = spanid;
 }

function countdown()
 {	
  for (i=0; i<t1.length;i++)
   {
    if (t1[i] > 0)
     {
      Sek = t1[i]%60;
      Min = Math.floor(t1[i] / 60);
      	
      if ( t1[i] < 60 )
       setText(t2[i], Sek );
      else if ( t1[i] < 3600 )
        {
	 Sek =((Sek<10)?"0":"") +  (Sek);
         Min = Math.floor(t1[i] / 60);
         setText(t2[i], Min + ":" + Sek );
        }
      else
        {
         Sek =((Sek<10)?"0":"") +  (Sek);
         Min = Math.floor(t1[i] / 60);	
         Min%=60;
         Min =((Min<10)?"0":"") +  (Min);
         Stu = Math.floor(t1[i] / 3600);
         setText(t2[i], Stu + ":" + Min + ":" + Sek);
        }
      t1[i]--; 
     }
    else
     {
      setText(t2[i], "Fertig");
     }
   }
  setTimeout("countdown()", 999);
 }

// Test