/*
CUSTOM FORM ELEMENTS

The only thing you need to change in this file is the following
variables: big_checkboxHeight, big_radioHeight and big_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
big_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 small_checkboxHeight = "25";
var small_radioHeight = "25";

var big_checkboxHeight = "40";
var big_radioHeight = "25";

var selectWidth = "95";

/* No need to change anything after this */

document.write('<style type="text/css">input.big_styled { display: none; } select.styled { position: relative; width: ' + selectWidth + 'px; opacity: 0; z-index: 5; }</style>');
document.write('<style type="text/css">input.small_styled { display: none; } select.styled { position: relative; width: ' + selectWidth + 'px; 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].className == "big_styled" || inputs[a].className == "small_styled")) {
                span[a] = document.createElement("span");

                if (inputs[a].className == "big_styled") {
                    checkHeight = big_checkboxHeight;
                    radioHeight = big_radioHeight;
                    span[a].className = 'big_' + inputs[a].type;
                } else {
                    checkHeight = small_checkboxHeight;
                    radioHeight = small_radioHeight;
                    span[a].className = 'small_' + inputs[a].type;
                }

                if (inputs[a].checked == true) {
                    if (inputs[a].type == "checkbox") {
                        position = "0 -" + (checkHeight * 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]);
                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 == "styled" || inputs[a].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].onchange = Custom.choose;
            }
        }
    },
    pushed: function() {
        element = this.nextSibling;

        if (element.className == "big_styled") {
            checkHeight = big_checkboxHeight;
            radioHeight = big_radioHeight;
        } else {
            checkHeight = small_checkboxHeight;
            radioHeight = small_radioHeight;
        }

        if (element.checked == true && element.type == "checkbox") {
            this.style.backgroundPosition = "0 -" + checkHeight * 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 -" + checkHeight + "px";
        } else {
            this.style.backgroundPosition = "0 -" + radioHeight + "px";
        }
    },
    check: function() {
        element = this.nextSibling;

        if (element.className == "big_styled") {
            checkHeight = big_checkboxHeight;
            radioHeight = big_radioHeight;
        } else {
            checkHeight = small_checkboxHeight;
            radioHeight = small_radioHeight;
        }

        if (element.checked == true && element.type == "checkbox") {
            this.style.backgroundPosition = "0 0";
            element.checked = false;
        } else {
            if (element.type == "checkbox") {
                this.style.backgroundPosition = "0 -" + checkHeight * 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].className == "big_styled") {
                checkHeight = big_checkboxHeight;
                radioHeight = big_radioHeight;
            } else {
                checkHeight = small_checkboxHeight;
                radioHeight = small_radioHeight;
            }

            if (inputs[b].type == "checkbox" && inputs[b].checked == true && inputs[b].className == "big_styled" || inputs[b].className == "small_styled") {
                inputs[b].previousSibling.style.backgroundPosition = "0 -" + checkHeight * 2 + "px";
            } else if (inputs[b].type == "checkbox" && inputs[b].className == "big_styled" || inputs[b].className == "small_styled") {
                inputs[b].previousSibling.style.backgroundPosition = "0 0";
            } else if (inputs[b].type == "radio" && inputs[b].checked == true && inputs[b].className == "big_styled" || inputs[b].className == "small_styled") {
                inputs[b].previousSibling.style.backgroundPosition = "0 -" + radioHeight * 2 + "px";
            } else if (inputs[b].type == "radio" && inputs[b].className == "big_styled" || inputs[b].className == "small_styled") {
                inputs[b].previousSibling.style.backgroundPosition = "0 0";
            }
        }
    },
    choose: function() {
        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;
            }
        }
    }
}
window.onload = Custom.init;