var checkboxHeight = "15";
var radioHeight = "15";

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") && $(inputs[a]).hasClass("styled")) {
				if(inputs[a].done)
					continue;
				inputs[a].done = true;
				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]);
				if(inputs[a].onchange != undefined)
					inputs[a].oncustchange = inputs[a].onchange;
				else
					inputs[a].oncustchange = function(){};
				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].className.indexOf("styled") != -1) {
			if($(inputs[a]).hasClass("styled")) {
				if(inputs[a].done)
					continue;
				inputs[a].done = true;
				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");
				if (inputs[a].disabled)
					span[a].className = "select disabled";
				else
					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].oncustchange = inputs[a].onchange;
				inputs[a].onchange = Custom.choose;
			}
		}
	},
	pushed: function() {
		element = this.nextSibling;
		
		if (element.disabled)
			return;
		
		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.disabled)
			return;
		
		if(element.checked == true && element.type == "checkbox") {
			this.style.backgroundPosition = "0 0";
			element.checked = false;
			$(this.nextSibling).change();
		} 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";
					}
				}
			}
			$(this.nextSibling).change();
			element.checked = true;
		}
	},
	clear: function() {
		inputs = document.getElementsByTagName("input");		
		for(var b = 0; b < inputs.length; b++) {
			if (inputs[b].disabled)
				continue;
			
			if(inputs[b].type == "checkbox" && inputs[b].checked == true && inputs[b].className == "styled") {
				inputs[b].previousSibling.style.backgroundPosition = "0 -" + checkboxHeight*2 + "px";
				inputs[b].oncustchange();
			} else if(inputs[b].type == "checkbox" && inputs[b].className == "styled") {
				inputs[b].previousSibling.style.backgroundPosition = "0 0";
				inputs[b].oncustchange();
			} else if(inputs[b].type == "radio" && inputs[b].checked == true && inputs[b].className == "styled") {
				inputs[b].previousSibling.style.backgroundPosition = "0 -" + radioHeight*2 + "px";
				inputs[b].oncustchange();
			} else if(inputs[b].type == "radio" && inputs[b].className == "styled") {
				inputs[b].previousSibling.style.backgroundPosition = "0 0";
				inputs[b].oncustchange();
			}
			
		}
	},
	choose: function() {
		option = this.getElementsByTagName("option");
		for(d = 0; d < option.length; d++) {
			if(option[d].selected == true) {
				if($(this).hasClass('gewicht') && false) {
					document.getElementById($(this).attr("title")).childNodes[0].nodeValue = option[d].childNodes[0].nodeValue;
				} else {
					document.getElementById("select" + this.name).childNodes[0].nodeValue = option[d].childNodes[0].nodeValue;
				}
				if (this.oncustchange != undefined)
					this.oncustchange();
			}
		}
	}
}

$(function() {
	Custom.init();
});