//js for switching content on and off under a specific id
function selectObject(name,elementId) {
	if (!document.getElementById) return;
	var navRoot = document.getElementById(elementId);
	if (navRoot) {
		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			if (node.id == name) {
				node.className = "textOn";
			} else {
				node.className = "textOff";
			}
		}
	}
}

// turn items on or off, displayed or not displayed
function textOnOff() {
	for (var i=0; i < arguments.length; i++) {
		var item = document.getElementById(arguments[i]);
		if (item.className=="textOn") {
			item.className= "textOff";
		} else { 
			item.className= "textOn";
		}
	}
}
// turn items on or off, displayed or not displayed
function textOff() {
	for (var i=0; i < arguments.length; i++) {
		var item = document.getElementById(arguments[i]);
		if (item.className=="textOn") {
			item.className= "textOff";
		} 
	}
}
// turn items on or off, displayed or not displayed
function textOn() {
	for (var i=0; i < arguments.length; i++) {
		var item = document.getElementById(arguments[i]);
		if (item.className=="textOff") {
			item.className= "textOn";
		} 
	}
}

//grabs variables from the address bar
function getQueryVariable(variable) {
    var query = window.location.search.substring(1);
    var vars = query.split("&");
    for (var i=0;i<vars.length;i++) {
        var pair = vars[i].split("=");
        if (pair[0] == variable) {
          return pair[1];
        }
    } 
      //alert('Query Variable ' + variable + ' not found');
}


var interval = 3; // delay between rotating images (in seconds)
var random_display = 0; // 0 = no, 1 = yes
interval *= 1000;

var image_index = 0;
image_list = new Array();
image_list[image_index++] = new imageItem("/wp-content/themes/brainau/images/hp_coffee.jpg");
image_list[image_index++] = new imageItem("/wp-content/themes/brainau/images/hp_plant.jpg");
image_list[image_index++] = new imageItem("/wp-content/themes/brainau/images/hp_phone.jpg");
image_list[image_index++] = new imageItem("/wp-content/themes/brainau/images/hp_couple.jpg");
var number_of_image = image_list.length;
function imageItem(image_location) {
this.image_item = new Image();
this.image_item.src = image_location;
}
function get_ImageItemLocation(imageObj) {
return(imageObj.image_item.src)
}
function generate(x, y) {
var range = y - x + 1;
return Math.floor(Math.random() * range) + x;
}
function getNextImage() {
if (random_display) {
image_index = generate(0, number_of_image-1);
}
else {
image_index = (image_index+1) % number_of_image;
}
var new_image = get_ImageItemLocation(image_list[image_index]);
return(new_image);
}
function rotateImage(place) {
	var place = 'anim';
var new_image = getNextImage();
document.getElementById(place).src = new_image;
var recur_call = "rotateImage('"+place+"')";
setTimeout(recur_call, interval);
}