var xmlHttp;
var url
function loadsummary(category)
{ 

	xmlHttp=GetXmlHttpObject();
	
	if (xmlHttp==null)
	  {
	  alert ("Your browser does not support AJAX!");
	  return;
	  } 
	 url='/ajax/newstab.asp?category='+category;
	
	//alert(url);
	xmlHttp.open("GET",url,true);
	xmlHttp.onreadystatechange=ShowNews;
	xmlHttp.send(null);
}

function ShowNews() 
{ 
	if (xmlHttp.readyState==4)
	{ 
//	alert(xmlHttp.responseText);
		document.getElementById("tab_content").innerHTML=xmlHttp.responseText;
		
	}
}

function GetXmlHttpObject()
{

var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
} 

	function showTab(obj, category)
	{
		
		
		var divs = document.getElementById('news_tab').getElementsByTagName('*');
		for(i=0;i<divs.length;i++)
		{
			if (divs[i].className=='tab_selected')
			divs[i].className='tab';
			
		}
		
		obj.className ='tab_selected';

		loadsummary(category);

	}
	startList = function() {
		if (document.all&&document.getElementById) 
		{
			navRoot = document.getElementById("nav");
			for (i=0; i<navRoot.childNodes.length; i++) 
			{
				node = navRoot.childNodes[i];
				if (node.nodeName=="LI") {
					node.onmouseover=function() 
					{
						this.className+=" over";
					}
					node.onmouseout=function()
					{
						hideMenu(this);
				    }
   			}
  		}
 	}

		loadsummary('News Releases');	

}

	
function hideMenu(obj)
{
	obj.className=obj.className.replace(" over", "");
}