// JavaScript Document
	/**
	 * 
	 * @param {Object} form
	 * @param {Object} task
	 * @param {Object} id
	 */
	function doTask( url, container, form ) {
		
		// if url is present, do validation
		if (url && form) {		
			// loop through form elements and prepare an array of objects for passing to server
			var str = new Array();
			for(i=0; i<form.elements.length; i++)
			{
				postvar = {
					name : form.elements[i].name,
					value : form.elements[i].value,
					id : form.elements[i].id,
					checked : form.elements[i].checked
				}
				str[i] = postvar;
			}
			// execute Ajax request to server
            var a=new Ajax(url,{
                method:"post",
				data:{"elements":Json.toString(str)},
                onComplete: function(response){
                    var resp=Json.evaluate(response);
                    $(container).setHTML(resp.msg);
                }
            }).request();
		} else if (url && !form) {
			// execute Ajax request to server
            var a=new Ajax(url,{
                method:"post",
                onComplete: function(response){
                    var resp=Json.evaluate(response);
                    $(container).setHTML(resp.msg);
                }
            }).request();			
		}
	}
	
	function tableOrdering( order, dir, task ) {
		var form = document.adminForm;
	     
		form.order.value     = order;
		form.order_dir.value    = dir;
	
		document.adminForm.submit( task );
	}
	
	function displayDiv (divname, spanname, showtext, hidetext) { 
		var div = document.getElementById(divname);
		var span = document.getElementById(spanname);
	
		if (div.style.display == "none")	{
			div.style.display = "";
			span.innerHTML = hidetext;
		} else {
			div.style.display = "none";
			span.innerHTML = showtext;
		}
	}
	
	function switchDisplayDiv( prefix, newSuffix ){
		var newName = prefix + newSuffix;
		var currentSuffixDiv = document.getElementById('currentSuffix');
		var currentSuffix = currentSuffixDiv.innerHTML;	
		var oldName = prefix + currentSuffix;
		var newDiv = document.getElementById(newName);
		var oldDiv = document.getElementById(oldName);
	
		currentSuffixDiv.innerHTML = newSuffix;
		newDiv.style.display = "";
		oldDiv.style.display = "none";
	}
	
	function submitForm(form, task, id) {   
		form.task.value = task;
		form.id.value = id;
		form.submit();
	}