progressEnd = 15;		// set to number of progress <span>'s.
progressColor =  '#4682B4' ;	// set to progress bar color
progressInterval = 400;	// set to time between updates (milli-seconds)
progressAt = progressEnd;
progressTimer = null ;

function showprogress()
{
     progress_update();		// start progress bar
}

    function progress_clear()
    {
        for (var i = 1; i <= progressEnd; i++)
        {
          document.getElementById('progress'+i).style.backgroundColor ='transparent';
        }
        progressAt = 0;
    }

    function progress_update()
    {
        progressAt++;
        if (progressAt > progressEnd)
        {
    	      progress_clear();
        }
        else
        {
          
			document.getElementById('progress'+progressAt).style.backgroundColor = 	progressColor;
        }
        progressTimer =setTimeout('progress_update()',progressInterval);
    }

    function progress_stop()
    {
        clearTimeout(progressTimer);
        progress_clear();
    }