/*-----------------------------------------------------------+
 | addLoadEvent: Add event handler to body when window loads |
 +-----------------------------------------------------------*/
function addLoadEvent(func) {
  var oldonload = window.onload;

  if (typeof window.onload != "function") {
    window.onload = func;
  } else {
    window.onload = function () {
      oldonload();
      func();
    }
  }
}

/*------------------------------------+
 | Functions to run when window loads |
 +------------------------------------*/
addLoadEvent(function () {
  initChecklist();
});

/*----------------------------------------------------------+
 | initChecklist: Add :hover functionality on labels for IE |
 +----------------------------------------------------------*/
function initChecklist() {
  if (document.all && document.getElementById) {
    // Get all unordered lists
    var lists = document.getElementsByTagName("ul");

    for (i = 0; i < lists.length; i++) {
      var theList = lists[i];

      // Only work with those having the class "checklist"
      if (theList.className.indexOf("checklist") > -1) {
        var labels = theList.getElementsByTagName("label");

        // Assign event handlers to labels within
        for (var j = 0; j < labels.length; j++) {
          var theLabel = labels[j];
          theLabel.onmouseover = function() { this.className += " hover"; };
          theLabel.onmouseout = function() { this.className = this.className.replace(" hover", ""); };
        }
      }
    }
  }
}