/*
This script is called in head.jsp and handles the section 508 compliance of select menus
as well as cross browser functionality of radio buttons.(opera)
*/
var CasEvent = new Object();//overloads the prototype Event method
Object.extend(Object.extend(CasEvent, Event), {observeExisting:function (element, name, observer, useCapture) {
  if ($(element)) {
    Event.observe(element, name, observer, useCapture);
  }
}});
/*
Events for selects.
*/
//variable for opera hack
var operaTrigger = false;
var onClick = function onClick(event) {

  if (navigator.userAgent.indexOf("Firefox") == -1) {
    if (CasEvent.element(event).previousClick != null) {
      CasEvent.element(event).form.submit();
      CasEvent.element(event).previousClick = null;
    } else {
      CasEvent.element(event).previousClick = CasEvent.element(event).getValue();
    }
    operaTrigger = true;
  }
};
var onFocus = function onFocus(event) {
  if (navigator.userAgent.indexOf("Firefox") == -1) {
    CasEvent.element(event).previous = CasEvent.element(event).getValue();
  }
};
var submitSelect = function submitSelect(event) {
	try{
	  if (navigator.userAgent.indexOf("Firefox") != -1 || navigator.userAgent.indexOf("Safari") != -1) {
	    event.form.submit();
	  } else if(navigator.userAgent.indexOf("MSIE 7.0") != -1 ){
	  	if(CasEvent.element(event).previous != CasEvent.element(event).getValue()){
	  		CasEvent.element(event).form.submit();
	    	CasEvent.element(event).previous = null;
	  	}
	  } else if(navigator.userAgent.indexOf("MSIE 6.0") != -1 ){ 
	  	if(CasEvent.element(event).previous != CasEvent.element(event).getValue()){
	  		CasEvent.element(event).form.submit();
	    	CasEvent.element(event).previous = null;
	  	}
	  } else if(navigator.userAgent.indexOf("Opera") != -1){
	  	if(operaTrigger){
	  		event.form.submit();
	  		operaTrigger = false;
	  	}
	  } else {
	    if (event.previousClick != event.getValue()) {
	      event.form.submit();
	      event.previousClick = null;
	    }
	  }
	}catch(err){
		//this handles checking null in msie browsers which throws an error in those browsers
	}
};
var submitSelectBlur = function submitSelectBlur(event) {
  if (navigator.userAgent.indexOf("Firefox") == -1 && navigator.userAgent.indexOf("MSIE") == -1 && CasEvent.element(event).previous != CasEvent.element(event).getValue()) {
    CasEvent.element(event).form.submit();
    CasEvent.element(event).previous = null;
  } else if(navigator.userAgent.indexOf("MSIE 7.0") != -1){
  	CasEvent.element(event).form.submit();
  } else if(navigator.userAgent.indexOf("MSIE 6.0") != -1){
  	CasEvent.element(event).form.submit();
  } else {
    CasEvent.element(event).previous = null;
  }
};
/*
Events for radios. Since behavior of our radio buttons differed, you must define a radioButtonsEvent in the head that 
performs the event you wish the radioButtons on the page to perform. For us this was sometimes a form submission, and 
sometimes a piece of javascript for hiding/showing a div.
*/
var submitRadioButtons = function submitRadioButtons(event) {
  if (typeof (radioButtonsEvent) != "undefined") {
    radioButtonsEvent(event);
  } else {
    alert("You must define a function radioButtonsEvent() to handle the behavior of the radio buttons within the page.");
  }
};
var submitRadioButtonsBlur = function submitRadioButtonsBlur(event) {
  if (navigator.userAgent.indexOf("Opera") != -1) {
    if (typeof (radioButtonsEvent) != "undefined") {
      radioButtonsEvent(event);
    } else {
      alert("You must define a function radioButtonsEvent() to handle the behavior of the radio buttons within the page.");
    }
  }
};
/*
Window On load function using prototype.
*/
CasEvent.observeExisting(window, "load", function () {
  var elements = document.getElementsByClassName("select508"); //Setup 508 selects
  if ( elements != null)
  {
    for (var i = 0; i < elements.length; i++) {
      CasEvent.observeExisting(elements[i], "focus", onFocus);
      CasEvent.observeExisting(elements[i], "blur", submitSelectBlur);
      CasEvent.observeExisting(elements[i], "click", onClick);
    }
  }
  
  var elements = document.getElementsByClassName("radio508");//Setup 508 radios
  if ( elements != null)
  {
    for (var i = 0; i < elements.length; i++) {
      CasEvent.observeExisting(elements[i], "blur", submitRadioButtonsBlur);
      CasEvent.observeExisting(elements[i], "click", submitRadioButtons);
    }
  }
  
  if (navigator.userAgent.indexOf("MSIE") != -1) {//Setup IE hack for tooltips.
    var menuedItems = document.getElementsByClassName("help");
    if ( menuedItems != null )
    {
      for (i = 0; i < menuedItems.length; i++) {
        menuedItems[i].onmouseover = function () {
          this.className += " over";
        };
        menuedItems[i].onmouseout = function () {
          this.className = this.className.replace(" over", "");
        };
      }
    }
  }
 // wrapMessages();//Hack for Firefox word wraps.
});
/*
This script is for a check all / none for check boxes and can be placed on a page by inserting an html tag checkAll
*/
var state = false;
var toggleChecks = function toggleChecks() {
  var checks = document.getElementsByClassName("checkBox");
  if ( checks!=null)
  {
    for (var i = 0; i < checks.length; i++) {
      checks[i].checked = !state;
      if (typeof (toggleAction) != "undefined") {
        toggleAction(checks[i]);
      }
    }
  }
  state = !state;
};
/*
This script is to fix a css issue within Firefox and Opera, the word-wrap and word-break css attributes used to be IE only attributed but have since
been adopted into CSS v3 standards, Firefox and Opera does not yet support them, thusly this hack works around it by inserting a no space line breaking
character. when a break is needed it will break at the neccessary character.
*/
/*
var wrapMessages = function wrapMessages() {
  var wrap = function wrap(message) {
    innerHTML = message.innerHTML;
    newHTML = "";
    if (innerHTML.indexOf(">") == -1) {//there is markup
    }
    while (innerHTML.length > 5) {
      if (innerHTML.substring(0, 5).indexOf("<") > -1 || innerHTML.substring(0, 5).indexOf(">") > -1) {
        newHTML += innerHTML.substring(0, 5);
        innerHTML = innerHTML.substring(5);
      } else {
        newHTML += innerHTML.substring(0, 5) + "&#8203;";
        innerHTML = innerHTML.substring(5);
      }
    }
    newHTML += innerHTML;
    message.innerHTML = newHTML;
  };
  if (navigator.userAgent.indexOf("MSIE") == -1 || navigator.userAgent.indexOf("Opera") != -1) {
    var messages = document.getElementsByClassName("systemMessage");
    for (var i = 0; i < messages.length; i++) {
      wrap(messages[i]);
    }
  }
};*/