// document.domain="law.virginia.edu";
var firstNewsItem=0;
var newsCategory="";
var lookupURL;
var divName="newsdiv";
var serverName="http://www.law.virginia.edu"
var lastVal = "";
var val = ""
var searching=false; 
var xmlHttp;
var retryNum=0;
// var cache = new Object();
var globalDom;
var dbPath = 'lawweb/news.nsf';
// function that allows URL customization
function getLookupURL(queryString){
	if (queryString == '') {
		var strURL = '/' + dbPath + '/csinew?readviewentries';
	}else{
		var strURL =  '/' + dbPath + '/csibytopic?readviewentries&restrictToCategory=' + 
		escape(queryString) + '&count=30';
		//var strURL =  '/' + dbPath + '/csibytopic?readviewentries&startKey=' + 
		//queryString + '&untilKey=' + queryString + 'z&count=30';
	}
	return strURL;
}
function getParameter ( parameterName ) {
queryString=window.location.search;
var parameterName = parameterName + "=";
if ( queryString.length > 0 ) {

	begin = queryString.indexOf ( parameterName );
	if ( begin != -1 ) {
		begin += parameterName.length;
		end = queryString.indexOf ( "&" , begin );
		if ( end == -1 ) {
			end = queryString.length
		}
		return unescape ( queryString.substring ( begin, end ) );
	}	
	return "";
}
	return "";
} 
/**
This sets up the XMLHTTP object we're using for the dynamic lookups.
*/
function getXMLHTTP(){
	var A = null;
  
	try{
		A = new ActiveXObject("Msxml2.XMLHTTP");
	}catch(e){
		try{
			A = new ActiveXObject("Microsoft.XMLHTTP");
		} catch(oc){
			A = null;
		}
	}
  
	if(!A && typeof XMLHttpRequest != "undefined") {
		A = new XMLHttpRequest();
	}
	return A;
}
/**
This sends the lookup request (as a URL with a query string) to a
server in the background. When a response comes back from the server, the
function attached to the onReadyStateChange event is fired off.
*/
function doRemoteQuery(queryString){
	newsCategory=getParameter("Topic");
	searching = true;
                retryNum=5;  //allow IE to retry 5 times to get height measurement
	if(xmlHttp && xmlHttp.readyState != 0) {
		xmlHttp.abort()
	}
  
	xmlHttp=getXMLHTTP();
	if(xmlHttp){ 
		xmlHttp.open("GET", getLookupURL(newsCategory), true);
    
		// What do we do when the response comes back?
		xmlHttp.onreadystatechange = function() {
			if (xmlHttp.readyState == 4 && xmlHttp.responseText && searching) {
				searching = false;
				globalDom = xmlHttp.responseXML;
				showNews(val);
			}
		} ;
    
		xmlHttp.send(null);
	}
}
function showDiv (show){
	//var div = getDiv(divName);
	var div = document.getElementById(divName);
	if (show)
		div.style.visibility = "visible";
	else
		div.style.visibility = "hidden";
	// adjustiFrame();
}
function showNews(queryString){
	//var div = getDiv(divName);
	var div = document.getElementById(divName);
	var extraRoom=20; // always leave this
	var estSizeStory=50;  // we assume another story will be at least this long
	var height;
	if (window.innerHeight)
	{ 
		// alert("Non-IE");
                	height=window.innerHeight; 
	}	
               else if (document.documentElement  &&  document.documentElement.clientHeight  )  
	{
		// alert("IE strict");
	 	height=document.documentElement.clientHeight;
	}
               else 
	{
		// alert("IE quirks--de: "+document.documentElement +"  dech: " +document.documentElement.clientHeight);
		height=document.body.clientHeight;
                                if (height==0  && retryNum > 0)
		{
			retryNum=retryNum-1; //alert("retry");
			window.setTimeout("showNews('" + queryString + "')",500);
			return;
		}
                                
	}
               
               height=height-extraRoom; 
                if (height < 0) height=0; 
               // alert("ih: "+document.body.clientHeight + "  Height:" + height);
               // alert(height);
	// to debug in FF
	//alert(new XMLSerializer().serializeToString(globalDom));
	// to debug in IE
	//alert(globalDom.xml);
  	// remove any results that are already there
	while (div.childNodes.length > 0)
		div.removeChild(div.childNodes[0]);
	// add an entry for each of the results in the domDoc
	var entryNodes = globalDom.getElementsByTagName('viewentry');
showDiv(1);
	//Start build of table
	oTable = document.createElement("table");
	// oTable.setAttribute("width","200");
	oTable.setAttribute("cellpadding","0");
	oTable.setAttribute("cellspacing","0");
	oTable.setAttribute("border","0");
	if(entryNodes.length > 0){  // check to see if we have any results
		// buildHeader(div);
	
		div.appendChild(oTable);		
		var i=firstNewsItem;
		while ((i < entryNodes.length) && ((oTable.offsetHeight + estSizeStory) < height)){
			valueNodes = entryNodes[i].getElementsByTagName('entrydata')
			
			var result2 = document.createElement("span");
			result2.className = "caption";
			result2.style.textAlign = "left";
			nodePubDate=valueNodes[1].getElementsByTagName('text')[0];
			result2.innerHTML = nodePubDate.firstChild.nodeValue + "<br />";
			
			nodeLinkback=valueNodes[4].getElementsByTagName('text')[0];
			linkBack=nodeLinkback.firstChild.nodeValue;
			var result3 = document.createElement("a");
			result3.className = "shortlist";
			result3.setAttribute("href",linkBack);
			result3.setAttribute("target","_top");
			// result3.style.textAlign = "left";
			nodeHeaderTxt=valueNodes[2].getElementsByTagName('text')[0];
                                                linkText=document.createTextNode(nodeHeaderTxt.firstChild.nodeValue);
			//result3.innerHTML = nodeHeaderTxt.firstChild.nodeValue;
			nodeImgTxt=valueNodes[5].getElementsByTagName('text')[0];
			var result1=null;
			if ((nodeImgTxt.firstChild != null )  && (nodeImgTxt.firstChild.nodeValue.length > 2))
			{
				result1 = document.createElement("img");
				result1.className = "imageleft";
				result1.setAttribute("border","0");
				nodeImgTxt=valueNodes[5].getElementsByTagName('text')[0];
				result1.setAttribute("src",nodeImgTxt.firstChild.nodeValue);
			}
			var result4 = document.createElement("span");
			result4.className = "newsspaced";
			// result4.style.font = "9px Verdana, Arial, Helvetica,sans-serif";
			// result4.style.font-size = "7";
			result4.style.textAlign = "left";
			nodeSynopsis=valueNodes[3].getElementsByTagName('text')[0];
			result4.innerHTML = nodeSynopsis.firstChild.nodeValue + '&nbsp;&nbsp;';
			oRow = oTable.insertRow(oTable.rows.length);
			oCell = oRow.insertCell(oRow.cells.length);
			
			oCell.appendChild(result2);
			result3.appendChild(linkText);
			oCell.appendChild(result3);
			// if (result1 != null) result3.appendChild(result1);  //add image to link
			
			// result3.appendChild(document.createElement("p"));
                                               oCell.appendChild(document.createElement("br"));
                                               oCell.appendChild(document.createTextNode("\u00a0"));
           			
			i++;
			
		}
		firstNewsItem=i;
		if  (oTable.offsetHeight > height)
		{	
			firstNewsItem=firstNewsItem-1;
			tempval= oTable.rows.length;
                                              
			oTable.deleteRow(tempval - 1);
		}
		
		if (firstNewsItem < entryNodes.length) 
		{
			//var result5 = document.createElement("br");
			//div.appendChild(result5);
			var result5 = document.createElement("a");
			result5.className = "rsstopic";
			// result5.onclick="showNews('')";
			result5.style.textAlign = "center";
			result5.setAttribute("href","javascript:showNews('')");
			result5.innerHTML = " More News";
			div.appendChild(result5);
		}
	}
	else
	{
		// alert("no news");
	}
	
}
function buildHeader(div)
{
	var rsslink="/" + dbPath + "/stories.xml";
	var linktitle="UVa Law Current News";
	if (newsCategory != "")
	{
		elem=document.createElement("span");
		elem.className="rsstopic";
		elem.innerHTML=" " +newsCategory;
		div.appendChild(elem);
		rsslink="/" + dbPath + "/StoriesByTopic.xml?open&Topic=" + escape(newsCategory);
		var linktitle="Law School Current News";
		 linktitle="Uva Law News By Topic--" +newsCategory;
	}
	elem=document.createElement("a");
	elem.setAttribute("target","_top");
	elem.href=rsslink;
	div.appendChild(elem);
	elem1=document.createElement("img");
	elem1.align="right";
	elem1.src="/icons/xml_button.gif";
	elem1.border="";
	elem.appendChild(elem1);
                elem1=document.createElement("br");
	elem.appendChild(elem1);
	var linktag=document.getElementById("RSSLink");
	
	if (linktag == null) 
	{
		headtag=document.getElementsByTagName("head").item(0);
		linktag=document.createElement("link");
		linktag.setAttribute("rel","alternate");
		linktag.setAttribute("type","application/rss+xml");
		linktag.setAttribute("id","RSSLink");
		headtag.appendChild(linktag);	
	}
	linktag.setAttribute("href",rsslink);
	linktag.setAttribute("title",linktitle);
}