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.onfocus=function() {
                    	this.className+=" over";
                    }
                    node.onmouseout=function() {
                    	this.className=this.className.replace(" over", "");
                    }
                    node.onblur=function() {
                    	this.className=this.className.replace(" over", "");
                    }
                 }
             }
          }
          /*
          var tab1 = document.getElementById("tab_schedules");
          addEvent( tab1, 'focus', function(){
          tab1.nextSibling.nextSibling.style.display = 'block';
          });
          var tab1 = document.getElementById("tab_schedules");
          addEvent( tab1, 'blur', function(){
          tab1.nextSibling.nextSibling.style.display = 'none';
          }); */
          
          /*
          Event.observe('retrieve', 'keypress', function(event){
          		if(event.keyCode == Event.KEY_RETURN){
          			event.keyCode = null;
          			return;
          		}
          });
          Event.observe('search', 'keypress', function(event){
          		if(event.keyCode == Event.KEY_RETURN){
          			event.keyCode = null;
          			return;
          		}
          });
          Event.observe('docbox', 'keypress', function(event){
          		if(event.keyCode == Event.KEY_RETURN){
          			event.keyCode = null;
          			return;
          		}
          });
          		
          Event.observe('docbox_input', 'focus', function(){
          	Event.observe('retrieve', 'keyup', function(event){
          		if(event.keyCode == Event.KEY_RETURN){
          		$('retrieve').click();
          		}
          	});
          });
          Event.observe('docbox_input', 'blur', function(){
          	Event.stopObserving('retrieve', 'keyup', function(event){
          		if(event.keyCode == Event.KEY_RETURN){
          		$('retrieve').click();
          		}
          	});
          }); */
}
function addEvent( obj, type, fn )
{
	if (obj.addEventListener)
		obj.addEventListener( type, fn, false );
	else if (obj.attachEvent)
	{
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
	}
}

function removeEvent( obj, type, fn )
{
	if (obj.removeEventListener)
		obj.removeEventListener( type, fn, false );
	else if (obj.detachEvent)
	{
		obj.detachEvent( "on"+type, obj[type+fn] );
		obj[type+fn] = null;
		obj["e"+type+fn] = null;
	}
}
window.onload=startList;

function checkIsNumber(element){
	if ( isNaN(element.value)){
		document.getElementById("cite_error").innerHTML = "Must be a number";
	}else {
		document.getElementById("cite_error").innerHTML = "";
	}
}
function validateRule(element){
	/*
	if ( isNaN(element.value)){
		document.getElementById("cite_error").innerHTML = "Must be a number";
	}else {
		document.getElementById("cite_error").innerHTML = "";
	} */
}