var lastDisplayedTab = "";
var lastDisplayedPage = "";

/*--------------------------------------------------------------------------------------------------*/

function showPage(tabId, pageId)
{
	if (document.getElementById(lastDisplayedTab))
	{
		document.getElementById(lastDisplayedTab).className = "tab";
		document.getElementById(lastDisplayedPage).style.display = "none";
	}
	
	if (document.getElementById(tabId))
	{
		document.getElementById(tabId).className = "tab selected";
		document.getElementById(pageId).style.display = "block";
	}
	
	lastDisplayedTab = tabId;
	lastDisplayedPage = pageId;
}