// AddLoadEvent Function

function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	} else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}

addLoadEvent(vdwUtil.mailtoFix);
addLoadEvent(vdwUtil.vCardLink);

String.prototype.trim=function(){
    return this.replace(/^\s*\n*\r*|\s*\n*\r*$/g,'');
}

// email encoding function
function email(alias,url,lnktext, subject){
    document.write ("<a href='mailto:" + alias + "@" + url + "?subject=" + subject + "' target='_blank'>" + lnktext + "</a>");
}

// addClass function
function addClass(element, value) {
	if (!element.className) {
		element.className = value;
	} else {
		newClassName = element.className;
		newClassName+= " ";
		newClassName+= value;
		element.className = newClassName;
	}
}

// Pop-up window script
addLoadEvent(setPopups);

function popUp(winURL) {
  window.open(winURL,"popup","width=320,height=480");
}

function pdfpopUp(winURL) {
  window.open(winURL,"pdf","");
}

function externalpopUp(winURL) {
  window.open(winURL,"external","");
}

function setPopups() {
  if (!document.getElementsByTagName) return false;
  var lnks = document.getElementsByTagName("a");
  for (var i=0; i<lnks.length; i++) {
    if (lnks[i].className == "popup") {
      lnks[i].title+= " (opens in a new window)";
      lnks[i].onclick = function() {
        popUp(this.getAttribute("href"));
        return false;
      }
    }
	else if (lnks[i].className == "external") {
      lnks[i].title+= " (opens in a new window)";
      lnks[i].onclick = function() {
        externalpopUp(this.getAttribute("href"));
        return false;
      }
    }
	else if (lnks[i].href != null && lnks[i].href.indexOf('.pdf') != -1) {
		lnks[i].title += " (opens in a new window)";
      	lnks[i].onclick = function() {
        	pdfpopUp(this.getAttribute("href"),"pdf","");
       		return false;
		}
	}
  }
}

/*
    Written by Jonathan Snook, http://www.snook.ca/jonathan
    Add-ons by Robert Nyman, http://www.robertnyman.com
*/
function getElementsByClassName(oElm, strTagName, strClassName){
	var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = new Array();
	strClassName = strClassName.replace(/\-/g, "\\-");
	var oRegExp = new RegExp("(^|\\s)" + strClassName + "(\\s|$)");
	var oElement;
	for(var i=0; i<arrElements.length; i++){
		oElement = arrElements[i];		
		if(oRegExp.test(oElement.className)){
			arrReturnElements.push(oElement);
		}	
	}
	return (arrReturnElements)
}
// ---
/*
	Revised to support looking for multiple class names,
	no matter in which order they're applied to the element
*/
function getElementsByClassName(oElm, strTagName, oClassNames){
	var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = new Array();
	var arrRegExpClassNames = new Array();
	if(typeof oClassNames == "object"){
		for(var i=0; i<oClassNames.length; i++){
			arrRegExpClassNames.push(new RegExp("(^|\\s)" + oClassNames[i].replace(/\-/g, "\\-") + "(\\s|$)"));
		}
	}
	else{
		arrRegExpClassNames.push(new RegExp("(^|\\s)" + oClassNames.replace(/\-/g, "\\-") + "(\\s|$)"));
	}
	var oElement;
	var bMatchesAll;
	for(var j=0; j<arrElements.length; j++){
		oElement = arrElements[j];
		bMatchesAll = true;
		for(var k=0; k<arrRegExpClassNames.length; k++){
			if(!arrRegExpClassNames[k].test(oElement.className)){
				bMatchesAll = false;
				break;
			}
		}
		if(bMatchesAll){
			arrReturnElements.push(oElement);
		}
	}
	return (arrReturnElements)
}
// ---
// Array support for the push method in IE 5
if(typeof Array.prototype.push != "function"){
	Array.prototype.push = ArrayPush;
	function ArrayPush(value){
		this[this.length] = value;
	}
}
// ---
/*
	Examples of how to call the function:
	
	To get all a elements in the document with a "info-links" class:
    getElementsByClassName(document, "a", "info-links");
    
	To get all div elements within the element named "container", with a "col" and a "left" class:
    getElementsByClassName(document.getElementById("container"), "div", ["col", "left"]);
*/
// ---