var c=0;
var t;
var timer_is_on=0;
function timedCount()
{c=c+1;
if(c>=imgArray.length) {c=0;}
if(!document.getElementById("SSTck"))
	{ //clear Timer
		stopTimer();
	}
else {
		im=document.getElementById("SSTck");
		im.src = imgSrc + imgArray[c];
		t=setTimeout("timedCount()",3000);
	 }
}
function doTimer()
{if (!timer_is_on)
  {  timer_is_on=1;
  		setTimeout("timedCount();",3000); }
}

function stopTimer()
{clearTimeout(t);
timer_is_on=0;
}