// dynamic array of linked categories -selcting one updates the other - uses fields in sbfKeywordArrays
function setForum(name,form){
	
	// form.ForumName.length = 0;
	j=0;
	for(i=0;i < Forumnumentries;i++)
	{
		if(tForum[i].indexOf(name)==0)
		{
			nChar = tForum[i].indexOf('~');
			onlyemp[j]= tForum[i].substring(nChar+1,tForum[i].length);
			j++;
		}
	}
	for (nbOldEntry=form.ForumName.options.length-1;nbOldEntry>0;nbOldEntry--)
	form.ForumName.options[nbOldEntry]=null
	for(x=1; x<(j+1); x++)
	{
		form.ForumName.options[x]=new Option(onlyemp[x-1],onlyemp[x-1])
	}
		
		form.ForumName.focus();
};
// to intercept the onKeyPress event
function abortSubmit (e) {return (false)}
function checkEnter(event){ 	//prevent return key
	var code = 0;	
	if (getBrowserType() == 'N')
		{code = event.which;}
	else
		{code = event.keyCode;}
		//  alert(code);
	if (code==13){
	window.document.forms[0].onsubmit = abortSubmit;
	}
}
// function to grab Forum fromURL parameter
function getForum() {
	urlStr= window.location.href;
	if(urlStr.indexOf("&Forum=")==-1){ 
		return"" }
	else{
    	return (urlStr.substring(urlStr.indexOf("&Forum=")));
	}
}
// functions used for navigating between threads
function openTopic(txtUnid) {	
    var forum= getForum();
    forumname= forum.split("&Start=");
    var videoURL = "/" + getPath () + "/0/" + txtUnid + "?opendocument" + forumname[0];
    window.location.href = videoURL;
}
function openResponse(txtUnid) {	
   var forum = getForum();
   var  url = "/" + getPath () + "/viewRepliesByUnid/" + txtUnid + "?opendocument" + forum;
    window.location.href = url;
}
function replyToTopic(txtUnid) {	
   var forum = getForum();
   var videoURL = "/" + getPath () + "/frmResponse?OpenForm&ParentUNID=" + txtUnid + "?opendocument" + forum;
   window.location.href = videoURL;
}
function replyToResponse(txtUnid) {	
   var forum = getForum();
   var videoURL = "/" + getPath () + "/frmRespToResp?OpenForm&ParentUNID=" + txtUnid + "?opendocument" + forum;
   window.location.href = videoURL;
}
//SEARCH FUNCTIONS
// simple search function - to process query parameters
function queryParameters(field, par){
return ("(FIELD+" + field + "+Contains+" + par +")");
}
// search function 
function getSearchResults() {
form=window.document.forms[0]; 
var searchString = form.SearchStringItem.value;
	if (searchString == "") 	{
				alert("Please enter a text string to search.");	
				form.SearchStringItem.focus();
				return;
				}
	else {
				// build search string					
				searchURL = "/" + getPath() + "/viewSearch?SearchView&Query=" + searchString+ "&Start=1&Count=20" ;						window.location.href = searchURL;
	}
 }
// advanced search function - treat NN4 and Mac separately
function getAdvancedSearchResults() {
  
form=window.document.forms[0];
// get field values
	var kw= escape(form.SearchString.value);
	var catg = escape(getListValue(form.WebCategories));
		if (catg=="All%20Categories"){catg=""}
	var forum = escape(getListValue(form.ForumName));
		if (forum=="All%20Forums"){forum=""}
// get checkbox values - if both are checked evaluate a OR operator
var type="";	
var checkType = false;

for (i = 0;  i < form.PostType.length;  i++)
{
	if (form.PostType[i].checked) {
		if (checkType==true){
		type = type + "+OR+"+form.PostType[i].value ;}
		else{
		type = form.PostType[i].value ;
		checkType = true; 
		}
	}
}
if (checkType==false){ type=""}
req="";
flag=true;
link = "+AND+";
    // BUILD SearchString in URL : req= req+  link + " (FIELD " + DocField + Operator + val + ") "
	if (kw !="") {req = "("+ kw + ")" ; flag=false };
	if (req !="" && catg !="" ){ req=req + link};
	if( catg !="" ) {req = req +queryParameters('WebCategories', catg) ; flag=false };
	if (req !="" && forum !="" ){ req=req + link};
	if( forum !="" ) {req = req +queryParameters('ForumName', forum); flag=false };
	if (req !="" && type !=""){ req=req + link};
	if( type !="") {req= req +queryParameters('PostType', type) ; flag=false };
// alert(req);
// if nothing is selected perform a general search to get everything
if (flag==true) {
	req = "*a+OR+*e+OR+*i+OR+*u";
	searchURL = "/" + getPath() + "/viewSearch?SearchView&Query=" + req + "&Start=0&Count=20";
}
else{
	searchURL = "/" + getPath() + "/viewSearch?SearchView&Query=" + req + "&Forum=" + forum + "&Start=0&Count=20";
};
// load url
	window.location.href = searchURL;
 };
// used for help popups
function openMessageBox(url){
	winPopup = window.open(url,"winpopup","width=600, Height=550,alwaysRaised=yes,scrollbars=yes,resizable=yes");winPopup.focus();
}
// compatible N & IE code to open url in a new window 
 function openNewWindow (URL, WinName, Features) { 
        window.open(URL, WinName, Features);
        }
// Return the selected value from a listbox
function getListValue(fieldName) {
	var i, nbSelected = 0;
	for (i = 0; i < fieldName.options.length; i++) {
		if (fieldName.options[i].selected
		  && fieldName.options[i].text != '') {return fieldName.options[i].text;};
	};
	return '';
};
//Select the option evaluated to 'value' of the select type field  'fieldName'
function selectListValue(fieldName,value) {
	var i, nbSelected = 0;
	for (i = 0; i < fieldName.options.length; i++) {
		if (fieldName.options[i].text == value)
		{
			fieldName.options[i].selected = true;
		};
	};
	return '';
}
//function used in the breadcrumbs locator to browse the forums
function openForum(field) {
	var key = getListValue(field);
	window.document.location.href='/' + getPath() + '/frmForumBrowse?ReadForm&Forum=' + escape(key) + '&Start=1&Count=8';
}
// function used in the forum list to go to a forum
function gotoForum(forum) {
	window.document.location.href='/' + getPath() + '/frmForumBrowse?ReadForm&Forum=' + escape(forum) + '&Start=1&Count=8';
}
// Used to altern row colors in view
function altern(docNumber) { 
var lastDocNumber =  docNumber.lastIndexOf('.')>=0? docNumber.slice(docNumber.lastIndexOf('.')+1) : docNumber;
return(lastDocNumber);
}