function makeEditable(id){
	Event.observe(id, 'click', function(){edit($(id))}, false);
	Event.observe(id, 'mouseover', function(){showAsEditable($(id))}, false);
	Event.observe(id, 'mouseout', function(){showAsEditable($(id), true)}, false);
}

function edit(obj){
	Element.hide(obj);
	
	var textarea = '<div id="'+obj.id+'_editor" style="z-index:500;"><textarea style="margin-bottom:0px;padding-bottom:0px;" id="'+obj.id+'_edit" name="'+obj.id+'" rows="2" cols="60">'+obj.innerHTML+'</textarea>';
	var button	 = '<div class="titlebuttons" style="margin-top:0px;padding-top:0px;"><input id="'+obj.id+'_save" type="image" src="http://www.sp-ark.org/wp-content/themes/default/images/button_pathway_save.gif"  width="56" height="18" style="margin-top:0px;padding-top:0px;" /><input id="'+obj.id+'_cancel"  type="image" src="http://www.sp-ark.org/wp-content/themes/default/images/button_pathway_cancel.gif" width="56" height="18"  style="margin-left:1px;margin-top:0px;padding-top:0px;" /></div></div>';
	
	new Insertion.After(obj, textarea+button);	
		
	Event.observe(obj.id+'_save', 'click', function(){saveChanges(obj)}, false);
	Event.observe(obj.id+'_cancel', 'click', function(){cleanUp(obj)}, false);
	
}

function showAsEditable(obj, clear){
	if (!clear){
		Element.addClassName(obj, 'editable');
	}else{
		Element.removeClassName(obj, 'editable');
	}
}

function saveChanges(obj){
	
	var new_content	=  escape($F(obj.id+'_edit'));

	obj.innerHTML	= "Saving...";
	cleanUp(obj, true);

	var success	= function(t){editComplete(t, obj);}
	var failure	= function(t){editFailed(t, obj);}

  	var url = 'http://www.sp-ark.org/ajax.php';
	var pars = 'action_id=7&id='+obj.id+'&content='+new_content;
	var myAjax = new Ajax.Request(url, {method:'post', postBody:pars, onSuccess:success, onFailure:failure});

}

function cleanUp(obj, keepEditable){
	Element.remove(obj.id+'_editor');
	Element.show(obj);
	if (!keepEditable) showAsEditable(obj, true);
}

function editComplete(t, obj){
	obj.innerHTML	= t.responseText;
	showAsEditable(obj, true);
}

function editFailed(t, obj){
	obj.innerHTML	= 'Sorry, the update failed.';
	cleanUp(obj);
}