var classSelected = "tabSelected";
var classNotSelected = "tabNotSelected";
function ChangeTab(obj,user)
{
	var parentObj = obj.parentNode;
	while(parentObj.tagName.toUpperCase() != "TD")
	{
		parentObj = parentObj.parentNode;
	}
	var tr = parentObj.parentNode;
	var allTabs = tr.getElementsByTagName("td");
	var is_first_or_last = 0;
	
	for(var i=0; i<allTabs.length; i ++)
	{
		allTabs[i].className = classNotSelected;
	/*	if(parentObj == allTabs[i] && i==0)  is_first_or_last = -1;
		if(parentObj == allTabs[i] && i+1==allTabs.length)  is_first_or_last = 1; */
	}	
	parentObj.className = classSelected + ( user && is_first_or_last==-1  ? "1" : "" ) + ( user && is_first_or_last==1 ? "2" : "" );
}

function LoadContent(obj)
{
	var req = new XMLHttpRequest();
	if(req)
	{
			var contentPlane = document.getElementById("contentPlane");
			req.onreadystatechange = function ()
					{
						if(req.readyState != 4)
						{
							contentPlane.innerHTML = lang("loading");
						}
						else
						{
							contentPlane.innerHTML = req.responseText;
						}
					}
			req.open("GET",obj.href+"&js=1",true);
			req.send(null);
			return false;
	}
	
	return true;
}