var actProduct = 1;
var productCount = null;

function Slider(obj, todo)
{	

	productCount = $("#" + obj + " .SliderObject").size();
	var position;
	
	if (todo == "next")
	{
		actProduct = actProduct + 1;
	}
	else 
	{
		actProduct = actProduct - 1;
	}
		
	if (actProduct <= 0)
	{
		actProduct = productCount;
	}
	else if (actProduct > productCount)
	{
		actProduct = 1;
	}
	
	position = (actProduct*150)-150;
	
	$("#" + obj + " .Slider").animate({ 
        left: "-" + position + "px"
      }, 500, "swing" );
}