function navigation() {
	var nav = document.getElementById('navigation');
	var mylinks = nav.getElementsByTagName('A');
	for (var i = 0; i < mylinks.length; i++) { 
		if(mylinks[i].parentNode.parentNode.id=='topnav'){
			mylinks[i].onclick=function(){
				if(this.parentNode.className=='' || this.parentNode.className=='closed'){
					this.parentNode.className='open';
				}
				else if(this.parentNode.className=='open'){
					this.parentNode.className='closed';
				}
				if (current_nav !='' && current_nav !=this.parentNode.id){
					document.getElementById(current_nav).className = 'closed';
				}			
			current_nav = this.parentNode.id;	
			return false;
			}
		}
	}
}

function itemlinks() {
 // intercept all links in the 'image' div and make them do this instead:
	var myitem = document.getElementById('image');
	var myitemlinks = myitem.getElementsByTagName('A');
	for (var i = 0; i < myitemlinks.length; i++) { 
		// get the id for this item
		myitemlinks[i].onclick=function(){
			thisid = this.className;
			new Ajax.Updater('content', 'get_item.php?id='+thisid, { method: 'get' });
			alert(thisid);
			return false;
		}
	}

}

function updateItem(id) {
			new Ajax.Updater('content', 'get_item.php?id='+id, { method: 'get' });
}