var amountOfMovingSteps = 3;
var lengthOfMovingStep = 128 + 24;
var amountOfScreenScrollingItems = 3;
var amountOfScrollingItems = 7;

function getLeftInt(value)
{
	return parseInt(value.replace('px',''));
}

	function EnableArrow(id)
	{
		var obj = document.getElementById(id);
		if(obj == null)
		{
			return;
		}
	    
		obj.style.cursor = "pointer";
		obj.src = "images/main/" + obj.className + "-arrow.png";
		
		if(id.indexOf('left') == 0)
		{
		    var clientId = id.replace("left", "");
		    var cmd = "leftClick" + clientId + "();";
		    obj.onclick = function() { eval(cmd); };
		}
		
		if(id.indexOf('right') == 0)
		{
		    var clientId = id.replace("right", "");
		    var cmd = "rightClick" + clientId + "();";
		    obj.onclick = function() { eval(cmd); };
		}
	}

	function DisableArrow(id)
	{
		var obj = document.getElementById(id);
		if(obj == null)
		{
			return;
		}
	    
		obj.style.cursor = "default";
		obj.src = "images/main/" + obj.className + "-arrow-disabled.png";
		
		obj.onclick = function() {};
	}