var activeTab = null;


function HoverOn(thisTab)
{
	if (thisTab != activeTab)
	{
		thisTab.style.background = "url(img/tab_bg_hover.png)";
	}
}

function HoverOff(thisTab)
{
	if (thisTab != activeTab)
	{
		thisTab.style.background = "";
	}
}

function SetActiveById(id)
{
	activeTab = document.getElementById(id);
	SetActive(activeTab, false);
}


function SetActive(thisTab, loadPage)
{
	if (!thisTab) return true;
	
	if (activeTab)
	{
		activeTab.style.background = "";
	}
	
	thisTab.style.background = "url(img/tab_bg_active.png)";
	activeTab = thisTab;
	
	if (loadPage)
	{
		top.location = "index.php?page=" + thisTab.id;
	}
	
}