//Global Variables
var niceforms = document.getElementsByTagName('form'); var inputs = new Array(); var labels = new Array(); var radios = new Array(); var radioLabels = new Array(); var checkboxes = new Array(); var checkboxLabels = new Array(); var selects = new Array(); var selectText = "please select"; var agt = navigator.userAgent.toLowerCase(); this.ie = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1)); var isMac = new RegExp('(^|)'+'Apple'+'(|$)');

//Theme Variables - edit these to match your theme
var selectRightSideWidth = 16;
var selectLeftSideWidth = 4;
var selectAreaHeight = 18;
//var selectAreaOptionsOverlap = 1;
var imagesPath = "i/";

//Initialization function - if you have any other 'onload' functions, add them here
function init() {
  if(!document.getElementById) {return false;}
  getElements();
  separateElements();
  replaceRadios();
  replaceCheckboxes();
  replaceSelects();
}

//getting all the required elements
function getElements() {
  var re = new RegExp('(^| )'+'niceform'+'( |$)');
  for (var nf = 0; nf < document.getElementsByTagName('form').length; nf++) {
    if(re.test(niceforms[nf].className)) {
      for(var nfi = 0; nfi < document.forms[nf].getElementsByTagName('input').length; nfi++) {inputs.push(document.forms[nf].getElementsByTagName('input')[nfi]);}
      for(var nfl = 0; nfl < document.forms[nf].getElementsByTagName('label').length; nfl++) {labels.push(document.forms[nf].getElementsByTagName('label')[nfl]);}
      for(var nfs = 0; nfs < document.forms[nf].getElementsByTagName('select').length; nfs++) {selects.push(document.forms[nf].getElementsByTagName('select')[nfs]);}
    }
  }
}
//separating all the elements in their respective arrays
function separateElements() {
  var r = 0; var c = 0; var t = 0; var rl = 0; var cl = 0; var tl = 0; var b = 0;
  for (var q = 0; q < inputs.length; q++) {
    if(inputs[q].type == 'radio') {
      radios[r] = inputs[q]; ++r;
      for(var w = 0; w < labels.length; w++) {if(labels[w].htmlFor == inputs[q].id) {if(inputs[q].checked) {labels[w].className = "chosen";} radioLabels[rl] = labels[w]; ++rl;}}
    }
    if(inputs[q].type == 'checkbox') {
      checkboxes[c] = inputs[q]; ++c;
      for(var w = 0; w < labels.length; w++) {if(labels[w].htmlFor == inputs[q].id) {if(inputs[q].checked) {labels[w].className = "chosen";} checkboxLabels[cl] = labels[w]; ++cl;}}
    }
  }
}
function replaceRadios() {
  for (var q = 0; q < radios.length; q++) {
    //move radios out of the way
    radios[q].className = "outtaHere";
    //create div
    var radioArea = document.createElement('div');
    if(radios[q].checked) {radioArea.className = "radioArea raChecked";} else {radioArea.className = "radioArea";}
    radioArea.id = "myRadio" + q;
    //insert div
    radios[q].parentNode.insertBefore(radioArea, radios[q]);
    //assign actions
    radioArea.onclick = new Function('rechangeRadios('+q+')');
    radioLabels[q].onclick = new Function('rechangeRadios('+q+')');
    radios[q].onclick = radioEvent;
  }
  return true;
}
function checkRadios(who) {
  var what = document.getElementById('myRadio'+who);
  others = document.getElementsByTagName('div');
  for(var q = 0; q < others.length; q++) {if((others[q].className == "radioArea raChecked")&&(others[q].nextSibling.name == radios[who].name)) {others[q].className = "radioArea";}}
  what.className = "radioArea raChecked";
}
function changeRadios(who) {
  if(radios[who].checked) {
    for(var q = 0; q < radios.length; q++) {if(radios[q].name == radios[who].name) {radios[q].checked = false; radioLabels[q].className = "";}} 
    radios[who].checked = true; radioLabels[who].className = "chosen";
    checkRadios(who);
  }
}
function rechangeRadios(who) {
  if(!radios[who].checked) {
    for(var q = 0; q < radios.length; q++) {if(radios[q].name == radios[who].name) {radios[q].checked = false; radioLabels[q].className = "";}}
    radios[who].checked = true; radioLabels[who].className = "chosen";
    checkRadios(who);
  }
}
function radioEvent(e) {
  if (!e) var e = window.event;
  if(e.type == "click") {for (var q = 0; q < radios.length; q++) {if(this == radios[q]) {changeRadios(q); break;}}}
}
function replaceCheckboxes() {
  for (var q = 0; q < checkboxes.length; q++) {
    //move checkboxes out of the way
    checkboxes[q].className = "outtaHere";
    //create div
    var checkboxArea = document.createElement('div');
    if(checkboxes[q].checked) {checkboxArea.className = "checkboxArea cbChecked";} else {checkboxArea.className = "checkboxArea";}
    checkboxArea.id = "myCheckbox" + q;
    //insert div
    checkboxes[q].parentNode.insertBefore(checkboxArea, checkboxes[q]);
    //asign actions
    checkboxArea.onclick = new Function('rechangeCheckboxes('+q+')');
    if(!isMac.test(navigator.vendor)) {checkboxLabels[q].onclick = new Function('changeCheckboxes('+q+')');}
    else {checkboxLabels[q].onclick = new Function('rechangeCheckboxes('+q+')');}
    checkboxes[q].onkeydown = checkEvent;
  }
  return true;
}
function checkCheckboxes(who, action) {
  var what = document.getElementById('myCheckbox'+who);
  if(action == true) {what.className = "checkboxArea cbChecked";}
  if(action == false) {what.className = "checkboxArea";}
}
function changeCheckboxes(who) {
  if(checkboxLabels[who].className == "chosen") {
    checkboxes[who].checked = true;
    checkboxLabels[who].className = "";
    checkCheckboxes(who, false);
  }
  else if(checkboxLabels[who].className == "") {
    checkboxes[who].checked = false;
    checkboxLabels[who].className = "chosen";
    checkCheckboxes(who, true);
  }
}
function rechangeCheckboxes(who) {
  var tester = false;
  if(checkboxLabels[who].className == "chosen") {
    tester = false;
    checkboxLabels[who].className = "";
  }
  else if(checkboxLabels[who].className == "") {
    tester = true;
    checkboxLabels[who].className = "chosen";
  }
  checkboxes[who].checked = tester;
  checkCheckboxes(who, tester);
}
function checkEvent(e) {
  if (!e) var e = window.event;
  if(e.keyCode == 32) {for (var q = 0; q < checkboxes.length; q++) {if(this == checkboxes[q]) {changeCheckboxes(q);}}} //check if space is pressed
}
function replaceSelects() {
    for(var q = 0; q < selects.length; q++) {
    //create and build div structure
    var selectArea = document.createElement('div');
    var left = document.createElement('div');
    var right = document.createElement('div');
    var center = document.createElement('div');
    var button = document.createElement('a');
    var text = document.createTextNode(selectText);
    center.id = "mySelectText"+q;
    var selectWidth = parseInt(selects[q].className.replace(/width_/g, ""));
    center.style.width = selectWidth - 2 + 'px';
    selectArea.style.width = selectWidth + selectRightSideWidth + selectLeftSideWidth + 'px';
    button.style.width = selectWidth + selectRightSideWidth + selectLeftSideWidth + 'px';
    button.href = "javascript:showOptions("+q+")";
    button.onkeydown = selectEvent;
    button.className = "selectButton"; //class used to check for mouseover
    selectArea.className = "selectArea";
    selectArea.style.zIndex = 100-q;
    selectArea.id = "sarea"+q;
    left.className = "left";
    right.className = "right";
    center.className = "center";
    right.appendChild(button);
    center.appendChild(text);
    selectArea.appendChild(left);
    selectArea.appendChild(center);
    selectArea.appendChild(right);
    //hide the select field
    selects[q].style.width = selectWidth + selectRightSideWidth + selectLeftSideWidth + 'px';
    selects[q].style.display = 'none';
    //insert select div
    selects[q].parentNode.insertBefore(selectArea, selects[q]);
    //build & place options div
    var optionsDiv = document.createElement('div');
    optionsDiv.style.width = selectWidth + selectRightSideWidth + selectLeftSideWidth + 'px';
    optionsDiv.className = "optionsDiv odInvisible";
    optionsDiv.id = "optionsDiv"+q;
    optionsDiv.style.top = selectAreaHeight + 'px';
    var optionWrapper = document.createElement('ul');
    optionWrapper.className = "nsowrap";
    if(selects[q].options.length > 12) {optionWrapper.style.height = '16.66em';}
    else {optionWrapper.style.height = 'auto';}
    //get select's options and add to options div
    for(var w = 0; w < selects[q].options.length; w++) {
      var optionHolder = document.createElement('li');
      var optionLink = document.createElement('a');
      var optionTxt = document.createTextNode(selects[q].options[w].text);
      optionLink.href = "javascript:showOptions("+q+"); selectMe('"+selects[q].id+"',"+w+","+q+");";
      optionLink.appendChild(optionTxt);
      optionHolder.appendChild(optionLink);
      optionWrapper.appendChild(optionHolder);
      //check for pre-selected items
      if(selects[q].options[w].selected) {selectMe(selects[q].id,w,q);}
    }
    //insert options div
    selectArea.appendChild(optionsDiv);
    optionsDiv.appendChild(optionWrapper);
  }
}
function showOptions(g) {
    elem = document.getElementById("optionsDiv"+g);
    if(elem.className=="optionsDiv odInvisible") {elem.className = "optionsDiv odVisible";}
    else if(elem.className=="optionsDiv odVisible") {elem.className = "optionsDiv odInvisible";}
    //elem.onmouseout = hideOptions;
}
function hideOptions(e) { //hiding the options on mouseout
  if (!e) var e = window.event;
  var reltg = (e.relatedTarget) ? e.relatedTarget : e.toElement;
  if(((reltg.nodeName != 'A') && (reltg.nodeName != 'DIV')) || ((reltg.nodeName == 'A') && (reltg.className=="selectButton") && (reltg.nodeName != 'DIV'))) {this.className = "optionsDivInvisible";};
  e.cancelBubble = true;
  if (e.stopPropagation) e.stopPropagation();
}
function selectMe(selectFieldId,linkNo,selectNo) {
  //feed selected option to the actual select field
  selectField = document.getElementById(selectFieldId);
  for(var k = 0; k < selectField.options.length; k++) {
    if(k==linkNo) {selectField.options[k].selected = "selected";}
    else {selectField.options[k].selected = "";}
  }
  //show selected option
  textVar = document.getElementById("mySelectText"+selectNo);
  var newText = document.createTextNode(selectField.options[linkNo].text);
  textVar.replaceChild(newText, textVar.childNodes[0]);
  if (selectField.onchange) {selectField.onchange();}
}
function selectEvent(e) {
  if (!e) var e = window.event;
  var thecode = e.keyCode;
  switch(thecode){
    case 40: //down
      var fieldId = this.parentNode.parentNode.id.replace(/sarea/g, "");
      var linkNo = 0;
      for(var q = 0; q < selects[fieldId].options.length; q++) {if(selects[fieldId].options[q].selected) {linkNo = q;}}
      ++linkNo;
      if(linkNo >= selects[fieldId].options.length) {linkNo = 0;}
      selectMe(selects[fieldId].id, linkNo, fieldId);
      break;
    case 38: //up
      var fieldId = this.parentNode.parentNode.id.replace(/sarea/g, "");
      var linkNo = 0;
      for(var q = 0; q < selects[fieldId].options.length; q++) {if(selects[fieldId].options[q].selected) {linkNo = q;}}
      --linkNo;
      if(linkNo < 0) {linkNo = selects[fieldId].options.length - 1;}
      selectMe(selects[fieldId].id, linkNo, fieldId);
      break;
    default:
      break;
  }
}

//Useful functions
function findPosY(obj) {
  var posTop = 0;
  while (obj.offsetParent) {posTop += obj.offsetTop; obj = obj.offsetParent;}
  return posTop;
}
function findPosX(obj) {
  var posLeft = 0;
  while (obj.offsetParent) {posLeft += obj.offsetLeft; obj = obj.offsetParent;}
  return posLeft;
}

window.onload = init;