var t;
function scrollUp()
{
	var elem = document.getElementById("inside_ofert");
	elem.scrollTop = elem.scrollTop - 10;
	t = setTimeout("scrollUp()", 50);
}
function scrollDown()
{
	var elem = document.getElementById("inside_ofert");
	elem.scrollTop = elem.scrollTop + 10;
	t = setTimeout("scrollDown()", 50);
}

function stopScroll()
{
	clearTimeout(t);
}

function mouseScroll(objtect_to_scroll)
{
	  var delta = 0;
	  if (!event) event = window.event;
	  // normalize the delta
	  if (event.wheelDelta)
	  {
	    // IE & Opera
	   delta = event.wheelDelta / 120;
	  }
	  else if (event.detail) // W3C
	  {
	    delta = -event.detail / 3;
	  }
	  
	  var elem = document.getElementById(objtect_to_scroll);
	  if(delta < 0)
		  elem.scrollTop = elem.scrollTop + 10;
	  else
		  elem.scrollTop = elem.scrollTop - 10;
}

var picture = 1;
var picturesCount = 10;

function nextPicture(holder_name)
{
	picture++;
	if(picture > picturesCount)
		picture = 1;
	
	var holder = document.getElementById(holder_name);
	holder.src = "../img/gallery/" + picture + ".jpg";
}

function prevPicture(holder_name)
{
	picture--;
	if(picture < 1)
		picture = 10;
	
	var holder = document.getElementById(holder_name);
	holder.src = "../img/gallery/" + picture + ".jpg";
}