/*

CUSTOM FORM ELEMENTS

Created by Ryan Fait
www.ryanfait.com

The only thing you need to change in this file is the following
variables: checkboxHeight, radioHeight and selectWidth.

Replace the first two numbers with the height of the checkbox and
radio button. The actual height of both the checkbox and radio
images should be 4 times the height of these two variables. The
selectWidth value should be the width of your select list image.

You may need to adjust your images a bit if there is a slight
vertical movement during the different stages of the button
activation.

Visit http://ryanfait.com/ for more information.

*/

var checkboxHeight = "25";
var radioHeight = "25";
var selectWidthWide = "190";
var selectWidth = "100";

/* No need to change anything after this */

document.write('<style type="text/css">.styled span input { display: none; } .styled span select { position: relative; width: ' + selectWidth + 'px; opacity: 0; filter:alpha(opacity=0); z-index: 5; } input.styled { display: none; } select.styled { position: relative; width: ' + selectWidth + 'px; opacity: 0; filter:alpha(opacity=0); z-index: 5; } span.styled input { display: none; } span.styled select { position: relative; width: ' + selectWidth + 'px; opacity: 0; filter:alpha(opacity=0); z-index: 5; }</style>');


var Custom = {
	init: function() {
		var inputs = document.getElementsByTagName("input"), span = Array(), textnode, option, active;
		for (a = 0; a < inputs.length; a++) {
			if ((inputs[a].type == "checkbox" || inputs[a].type == "radio") && (inputs[a].parentNode.className == "styled" || inputs[a].className == "styled" || inputs[a].parentNode.parentNode.parentNode.parentNode.parentNode.className == "styled")) {
				span[a] = document.createElement("span");
				span[a].className = inputs[a].type;

				if (inputs[a].checked == true) {
					if (inputs[a].type == "checkbox") {
						position = "0 -" + (checkboxHeight * 2) + "px";
						span[a].style.backgroundPosition = position;
					} else {
						position = "0 -" + (radioHeight * 2) + "px";
						span[a].style.backgroundPosition = position;
					}
				}
				inputs[a].parentNode.insertBefore(span[a], inputs[a]);
				inputs[a].onchange = Custom.clear;
				span[a].onmousedown = Custom.pushed;
				span[a].onmouseup = Custom.check;
				document.onmouseup = Custom.clear;
			}
		}
		inputs = document.getElementsByTagName("select");
		for (a = 0; a < inputs.length; a++) {
			if (inputs[a].parentNode.className == "styled" || inputs[a].className == "styled" || inputs[a].parentNode.parentNode.parentNode.parentNode.parentNode.className == "styled") {
				option = inputs[a].getElementsByTagName("option");
				active = option[0].childNodes[0].nodeValue;
				textnode = document.createTextNode(active);
				for (b = 0; b < option.length; b++) {
					if (option[b].selected == true) {
						textnode = document.createTextNode(option[b].childNodes[0].nodeValue);
					}
				}
				span[a] = document.createElement("span");
				span[a].className = "select";
				span[a].id = "select" + inputs[a].name;
				span[a].appendChild(textnode);
				inputs[a].parentNode.insertBefore(span[a], inputs[a]);
				inputs[a].setAttribute("origonchange", inputs[a].getAttribute("onchange"));
				inputs[a].onchange = Custom.choose;
			}
		}
	},
	pushed: function() {
		element = this.nextSibling;
		if (element.checked == true && element.type == "checkbox") {
			this.style.backgroundPosition = "0 -" + checkboxHeight * 3 + "px";
		} else if (element.checked == true && element.type == "radio") {
			this.style.backgroundPosition = "0 -" + radioHeight * 3 + "px";
		} else if (element.checked != true && element.type == "checkbox") {
			this.style.backgroundPosition = "0 -" + checkboxHeight + "px";
		} else {
			this.style.backgroundPosition = "0 -" + radioHeight + "px";
		}
	},
	check: function() {
		element = this.nextSibling;
		if (element.checked == true && element.type == "checkbox") {
			this.style.backgroundPosition = "0 0";
			element.checked = false;
		} else {
			if (element.type == "checkbox") {
				this.style.backgroundPosition = "0 -" + checkboxHeight * 2 + "px";
			} else {
				this.style.backgroundPosition = "0 -" + radioHeight * 2 + "px";
				group = this.nextSibling.name;
				inputs = document.getElementsByTagName("input");
				for (a = 0; a < inputs.length; a++) {
					if (inputs[a].name == group && inputs[a] != this.nextSibling) {
						inputs[a].previousSibling.style.backgroundPosition = "0 0";
					}
				}
			}
			element.checked = true;
		}
		//alert(element.id + " " + element.onclick);
		var script_onchange = element.getAttribute("onclick").toString();
		if (script_onchange.indexOf("function anonymous()", 0) == 0) {
			script_onchange = script_onchange.replace(/function anonymous\(\)/i, "");
		}
		eval(script_onchange);

	},
	clear: function() {
		inputs = document.getElementsByTagName("input");
		for (var b = 0; b < inputs.length; b++) {
			if (inputs[b].type == "checkbox" && inputs[b].checked == true && inputs[b].className == "styled" || inputs[a].parentNode.parentNode.parentNode.parentNode.parentNode.className == "styled") {
				inputs[b].previousSibling.style.backgroundPosition = "0 -" + checkboxHeight * 2 + "px";
			} else if (inputs[b].type == "checkbox" && inputs[b].className == "styled") {
				inputs[b].previousSibling.style.backgroundPosition = "0 0";
			} else if (inputs[b].type == "radio" && inputs[b].checked == true && inputs[b].className == "styled") {
				inputs[b].previousSibling.style.backgroundPosition = "0 -" + radioHeight * 2 + "px";
			} else if (inputs[b].type == "radio" && inputs[b].className == "styled") {
				inputs[b].previousSibling.style.backgroundPosition = "0 0";
			}
		}
	},
	choose: function(original_onchange) {
		option = this.getElementsByTagName("option");
		for (d = 0; d < option.length; d++) {
			if (option[d].selected == true) {
				document.getElementById("select" + this.name).childNodes[0].nodeValue = option[d].childNodes[0].nodeValue;
				var script_onchange = this.getAttribute("origonchange").toString();
				if (script_onchange.indexOf("function anonymous()", 0) == 0) {
					script_onchange = script_onchange.replace(/function anonymous\(\)/i, "");
				}
				eval(script_onchange);
			}
		}
	}
}
function f_addEventListener(s_event, f_function) {
	//if (typeof (f_function) != 'function') // debug
	//throw (new Error(000, 'Can not assign ' + typeof (f_function) + ' as the event handler.')); // debug
	if (document.addEventListener) {
		window.addEventListener(s_event, f_function, false);
		return;
	}
	if (window.attachEvent) {
		window.attachEvent('on' + s_event, f_function);
		return;
	}
	var f_oldHandler = window['on' + s_event];
	if (typeof (f_oldHandler) == 'function') {
		window['on' + s_event] = function() {
			f_oldHandler();
			f_function();
		}
		return;
	}
	window['on' + s_event] = f_function;
}
f_addEventListener("load", Custom.init);
//window.onload = Custom.init;