addLoadEvent(dropdownNav);
addLoadEvent(assignLogGoal);

function assignLogGoal(){
	if (!getElementsByClassName(document, "a", "goal")) return;
	var links = getElementsByClassName(document, "a", "goal");
	for (var i=0; i<links.length; i++){
		links[i].onclick = function(){
			var uString = '/goal/recorded-presentations-and-meetings.aspx/'+this;
			urchinTracker(uString);
		}
	}
}


function dropdownNav(){
        var navRoot = document.getElementById('nav');
        var li_list = navRoot.getElementsByTagName('li');
        for (var i=0; i<li_list.length; i++){
                        li_list[i].onmouseover = function(){
                                for (var n=0; n<this.childNodes.length; n++){
                                        var ul_node = this.childNodes[n];
                                        if (ul_node.nodeName == 'UL'){
                                                this.childNodes[n].className += ' over';

                                        }
                                }
                        }
                        li_list[i].onmouseout = function(){
                                for (var n=0; n<this.childNodes.length; n++){
                                        var ul_node = this.childNodes[n];
                                        if (ul_node.nodeName == 'UL'){
                                                this.childNodes[n].className = '';

                                        }
                                }
                        }
        }

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

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)
}