function SwitchMenu(obj)
{
    if(document.getElementById)
    {
	    var el = document.getElementById(obj);
	    var ar = document.getElementById("cont2").getElementsByTagName("div");
		for (var i=0; i<ar.length; i++)
		{
    		ar[i].style.display = "none";
		}
	    var ar = document.getElementById("cont3").getElementsByTagName("div");
		for (var i=0; i<ar.length; i++)
		{
    		ar[i].style.display = "none";
		}
	    var ar = document.getElementById("cont").getElementsByTagName("div");
	    if(el.style.display == "none")
	    {
			for (var i=0; i<ar.length; i++)
			{
	    		ar[i].style.display = "none";
			}
			el.style.display = "block";
	    }
	    else
	    {
			el.style.display = "none";
	    }
    }
}

function SwitchCoursRate(obj)
{
    if(document.getElementById)
    {
	    var el = document.getElementById(obj);
	    if(el.style.display == "none"){
			el.style.display = "block";
	    }
	    else{
			el.style.display = "none";
	    }
    }
}


var Timer;
function ScrollLeft()
{
	Timer = setInterval("document.getElementById('photos').scrollLeft -= 2", 15);
}
function ScrollRight()
{
	Timer = setInterval("document.getElementById('photos').scrollLeft += 2", 15);
}
function ScrollCenter()
{
	if (document.getElementById('photos').scrollLeft != 0)
	{
		document.getElementById('photos').scrollLeft = 0;
	}
	scrcnt_photos = parseInt (document.getElementById('photos').style.width);
	scrcnt = (parseInt (document.getElementById('inphotos').style.width) - scrcnt_photos) / 2;
	alert ("aaa=" + scrcnt);
	document.getElementById('photos').scrollLeft += scrcnt;
}