var c = 39;
var t;
var cnt = 0;
	
function offerCount()
{
    cnt += 1;
    var rnd_number = Math.floor(Math.random()*c+cnt);
    document.getElementById('countdown').innerHTML = c;
    if (c > 1)
    {
    	t = setTimeout("offerCount()",rnd_number*100);
    	c = c - 1;
    }
    else if ( c == 1 )
    {
    	myopen('2');
    }
}