function ToggleNode(nodebase){
	//alert(nodebase)
	//alert(document.getElementById(nodebase + 'HeaderIcon').src)
	if(document.getElementById(nodebase + 'Content').style.display==''){
		document.getElementById(nodebase + 'Content').style.display='none';
		document.getElementById(nodebase + 'HeaderIcon').src='web_icons/tree_icons/plus-middle.gif';
	} else {
		document.getElementById(nodebase + 'Content').style.display='';
		document.getElementById(nodebase + 'HeaderIcon').src='web_icons/tree_icons/minus-middle.gif';
	}
}