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

/* No need to change anything after this */

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].className == "styled") {
			if((inputs[a].type == "checkbox" || inputs[a].type == "radio")) {
				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;
				if(!inputs[a].getAttribute("disabled")) {
					span[a].onmousedown = Custom.pushed;
					span[a].onmouseup = Custom.check;
					if (inputs[a].onclick) span[a].onclick = inputs[a].onclick;
				} else {
					span[a].className = span[a].className += " disabled";
				}

				inputs[a].style.visibility= 'hidden';
			}
		}
	},
	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;
		}
	},
	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") {
			if(inputs[b].type == "checkbox" && inputs[b].checked == true) {
				inputs[b].previousSibling.style.backgroundPosition = "0 -" + checkboxHeight*2 + "px";
			//} else if(inputs[b].type == "checkbox" && inputs[b].className == "styled") {
			} else if(inputs[b].type == "checkbox") {
				inputs[b].previousSibling.style.backgroundPosition = "0 0";
			//} else if(inputs[b].type == "radio" && inputs[b].checked == true && inputs[b].className == "styled") {
			} else if(inputs[b].type == "radio" && inputs[b].checked == true) {
				inputs[b].previousSibling.style.backgroundPosition = "0 -" + radioHeight*2 + "px";
			//} else if(inputs[b].type == "radio" && inputs[b].className == "styled") {
			} else if(inputs[b].type == "radio") {
				inputs[b].previousSibling.style.backgroundPosition = "0 0";
			}
		}
	}
}
window.onload = Custom.init;