function selectNewsTab(tab, url) {

	if (tab != null && tab > 0 && url != null) {

		var i = 1;

		var selectedTab = null;

		while ((selectedTab = document.getElementById('news-tab-' + i)) != null) {

			if (i == tab) {

				selectedTab.className = 'news-tab news-tab-selected';

			} else if (i < tab) {

				selectedTab.className = 'news-tab news-tab-above';

			} else if (i > tab) {

				selectedTab.className = 'news-tab news-tab-under';

			}

			i++;

		}

		updateNewsTab(url);

	}

}



function updateNewsTab(url)

{

    xmlHttp=GetXmlHttpObject();



    if (xmlHttp==null)

    {

        alert ("Browser does not support HTTP Request");

        return;

    }



    xmlHttp.onreadystatechange=updateNewsTabContent;

    xmlHttp.open("GET",url,true);

    xmlHttp.send(null);

}



function updateNewsTabContent() {

    if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")

    {

        document.getElementById("newsTabContent").innerHTML=xmlHttp.responseText;

    }

}



function GetXmlHttpObject()

{

    var objXMLHttp=null;

    if (window.XMLHttpRequest)

    {

        objXMLHttp=new XMLHttpRequest();

    }

    else if (window.ActiveXObject)

    {

        objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP");

    }

    return objXMLHttp;

}