// JavaScript Document
/* **** ARRAY EXTENSION FOR NON-SUPPORTING BROWSERS **** */
		if(typeof Array.prototype.push=='undefined') {
		    Array.prototype.push = function () {
		        var i=0,
		            b=this.length,
		            a=arguments;
		        for(i;i<a.length;i++) {
		            this[b+i]=a[i];
				}
		        return this.length
		    }
		}
		/* **** STRING EXTENSION FOR PUNCTUATION **** */
		if (typeof(String.fromCharCode) == 'undefined') {
			String.fromCharCode = function () {
				if (arguments.length = 0) {
					return "";
				}
				var charCodeChars = new Array(32);
				var returnString = "";
				var i;	
				charCodeChars[9] = '\t';
				charCodeChars[13] = '\n';
				charCodeChars.push(' ','!','"','#','$','%','',"'",'(',')','*','+',',','-','.','/','0','1','2','3','4','5','6','7','8','9',':',';','<','=','>','?','@');
				charCodeChars.push('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','[','\\',']','^','_','`');
				charCodeChars.push('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','{','|','}','~');
				
				for (i=0;arguments.length > i;i++) {
					returnString += charCodeChars[arguments[i]];
				}
				return returnString;
			}
		}
		String.fromKeyCode = function (keyCode,evtType) {
			if (!evtType || !evtType.length) {
				evtType = "keyDown";
			} else if (evtType.toLowerCase() == "keypress") {
				return String.fromCharCode(keyCode);
			}
			var keyDownChars = new Array(16);
				keyDownChars[8] = '[Bksp]';
				keyDownChars[9] = '[Tab]';
				keyDownChars[12] = '[N5+shift]';
				keyDownChars[13] = '[Enter]';
				keyDownChars.push('[Shift]','[Ctrl]','[Alt]','[Pause]','[CapsLock]');
				for (i=11;i;--i) {
					keyDownChars.push('undefined');
				}
				keyDownChars[27] = '[Esc]';
				keyDownChars.push(' ','[PgUp]','[PgDn]','[End]','[Home]','[Left]','[Up]','[Right]','[Down]');
				for (i=7;i;--i) {
					keyDownChars.push('undefined');
				}
				keyDownChars[45] = '[Ins]';
				keyDownChars[46] = '[Del]';
				keyDownChars.push(['0',')'],['1','!'],['2','@'],['3','#'],['4','$'],['5','%'],['6','^'],['7','&'],['8','*'],['9','(']);
				for (i=7;i;--i) {
					keyDownChars.push('undefined');
				}
				keyDownChars.push('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','[WinKey]');
				for (i=4;i;--i) {
					keyDownChars.push('undefined');
				}
				keyDownChars.push('0','1','2','3','4','5','6','7','8','9','*','+','undefined','-','.','/','[F1]','[F2]','[F3]','[F4]','[F5]','[F6]','[F7]','[F8]','[F9]','[F10]','[F11]','[F12]');
				for (i=62;i;--i) {
					keyDownChars.push('undefined');
				}
				keyDownChars[144] = '[NumLock]';
				keyDownChars[145] = '[ScrollLock]';
				keyDownChars.push([';',':'],['=','+'],[',','<'],['-','_'],['.','>'],['/','?'],['`','~']);
				for (i=26;i;--i) {
					keyDownChars.push('undefined')
				}
				keyDownChars.push(['[','{'],['\\','|'],[']','}'],["'",'"']);
			return keyDownChars[keyCode];
		}
		
		/* **** COMBOBOX CODE **** */
		/**************************************************
		Original Version (1.0):
		Glenn G. Vergara
		http://www21.brinkster.com/gver/
		glenngv AT yahoo DOT com
		Makati City, Philippines
		
		Object-Based Version:
		Eric C. Davis
		http://www.10mar2001.com/
		eric AT 10mar2001 DOT com
		Atlanta, GA, US
		
		(Keep the above intact if you want to use it! Thanks.)
		
		Current Version: 2.5b
		Last Update: 1 December 2003
		
		********
		Change Log:
		New in version 2.5b:
			- Reversed selectItem() loop to prevent default IE6/Win rapid-change behaviour (skipped to second on match of first)
			- Outfitted for DOM2-style event handling; uses detection and falls back to DOM0 events
			- Resets immediately on ALT+TAB to prevent IE6/Win's loss of the reset timer.
		
		New in version 2.4:
			- Added accepting of non-existent option
			- Added punctuation as acceptable input
			- Added setValueByValue() convenience method
		
		New in version 2.2:
			- Many properties made private
			- Getters and setters for nearly all properties
		
		New in version 2.0:
			- Object-oriented properties and methods using prototype
			- Constructor can accept a select element object or a select element object's ID string
			- Invocation reduced to single line of script: varName = new TypeAheadCombo('selectElementID');
		
		New in version 1.4:
			- Allowable character set ranges use dynamic evaluation
			- Display of typed characters in status bar can be disabled
		
		New in version 1.2:
			- Replaced major if/elseif/.../else statement with switch/case
			- Correction of characters typed on the numpad, reassigning to actual character values
		********
		
		********
		API:
		Constructor:
			new TypeAheadCombo(someSelectElement) // as an object or object reference
			new TypeAheadCombo('someSelectElementID') // as a string
			new TypeAheadCombobox('someSelectElementID', true) // to allow an undefined value
		
		Privileged Methods: (these interact with private properties and act as helper functions)
			getTyped()
				- returns the string typed by the user since the last timeout
			setTyped(str)
				- argument "str" - string which will replace the value in the type buffer
			type(str)
				- argument "str" - string which will be appended to the type buffer
			resetTyped()
				- clears what has been typed from the buffer
			getIndex()
				- returns the location of the option currently selected
			setIndex(val)
				- stores the location of the option being selected
			getPrev()
				- returns the location of the option previously selected
			setPrev(val)
				- stores the location of the option previously selected
			setResetTime(val)
				- sets the timeout interval for the reset timers
			getResetTime()
				- returns the timeout interval for the reset timers
			setResetTimer()
				- sets the timeout for the reset of the typed buffer
			clearResetTimer()
				- clears the timeout of the reset of the typed buffer
			validChar(charCode)
				- validates that the charCode passed is acceptable to the typed buffer
			setDisplayStatus(bool)
				- set whether to display the typed buffer in the status bar
			getDisplayStatus()
				- returns the current setting for status bar display of the typed buffer
		
		Public Methods:
			detectKey()
				- detects the keyCode, parses whether it is acceptable, and adds it to the typed buffer if so
			selectItem()
				- finds the first option that matches the typed buffer and selects it
			reset()
				- clears the typed buffer and the status display
			updateIndex()
				- handles the onclick and onblur events
			elementFocus()
				- handles the onfocus event
			elementKeydown()
				- handles the onkeydown event
		********
		
		***************************************************/
		function TypeAheadCombo (anElement,acceptNewValue) {
			// DEGRADE UNSUPPORTED
			if (document.layers) {
				return;
			}
			// VALIDATION
			if (!anElement) {
				return false;
			}
			if (typeof anElement == "string") { // try for the ID
				anElement = document.getElementById ? document.getElementById(anElement) : document.all ? document.all[anElement] : anElement;
			}
			if (typeof anElement == "string") { // the grab failed: typeof null yields "object"
				return false;
			}
			// ASSOCIATION
			this.element = anElement;
			this.id = this.element.id + 'Combo';
			this.element.combo = this;
			// ELEMENT EVENT HANDLERS
			if (this.element.addEventListener) {
				// first try DOM2 methods
				this.element.addEventListener("keydown", this.elementKeydown, false);
				this.element.addEventListener("focus", this.elementFocus, false);
				this.element.addEventListener("click", this.updateIndex, false);
				this.element.addEventListener("blur", this.updateIndex, false);
			} else {
				// now try DOM0 methods
				this.element.onkeydown = this.elementKeydown;
				this.element.onfocus = this.elementFocus;
				this.element.onclick = this.updateIndex;
				this.element.onblur = this.updateIndex;
			}
			this.element.reset = this.reset;
			// PRIVATE PROPERTIES
			var self = this,	// corrects privatization bug
				typed = "",
				index = prev = 0,
				displayStatus = true,
				selector, resetter, nullStarter, acceptNew,
				resetTime = 1600,
				numberRangeStart = 48,
				numberRangeEnd = 57,
				charRangeStart = 65,
				charRangeEnd = 90,
				punctRangeStart = 146,
				punctRangeEnd = 223;
			if (this.element.options[0].text.length == 0 && (this.element.options[0].value.length == 0 || this.element.options[0].value == 0)) {
				nullStarter = true;
			} else {
				nullStarter = false;
			}
			if (typeof acceptNewValue != 'undefined' && acceptNewValue) {
				acceptNew = true;
				resetTime = 2400;
			} else {
				acceptNew = false;
			}
			// PRIVATE METHODS
			var getResetTime = function () {
				return resetTime;
			}
			var charInRanges = function (charCode) {
				if ((charCode >= numberRangeStart && charCode <= numberRangeEnd) || (charCode >= charRangeStart && charCode <= charRangeEnd) || (charCode >= punctRangeStart && charCode <= punctRangeEnd)) {
					return true;
				} else {
					return false;
				}
			}
			// PRIVILEDGED METHODS
			this.hasNullStarter = function () {
				return nullStarter;
			}
			this.getAcceptsNew = function () {
				return acceptNew;
			}
			this.getTyped = function () {
				return typed;
			}
			this.setTyped = function (str) {
				typed = str;
				return true;
			}
			this.resetTyped = function () {
				typed = "";
				return true;
			}
			this.type = function (str) {
				typed += str;
				return true;
			}
			this.getIndex = function () {
				return index;
			}
			this.setIndex = function (val) {
				if (!isNaN(val)) {
					index = val;
				}
			}
			this.getPrev = function () {
				return (prev ? prev : 0);
			}
			this.setPrev = function (val) {
				if (!isNaN(val)) {
					prev = val;
				}
			}
			this.setResetTime = function (val) {
				if (!isNaN(val)) {
					resetTime = val;
				}
			}
			this.setResetTimer = function () {
				resetter = setTimeout("document.forms['"+this.element.form.name+"'].elements['"+this.element.name+"'].reset();", getResetTime());
			}
			this.clearResetTimer = function () {
				clearTimeout(resetter);
			}
			this.delayedSelect = function () {
				selector = setTimeout("document.forms['"+this.element.form.name+"'].elements['"+this.element.name+"'].combo.selectItem();", 10);
			}
			this.cancelDelay = function () {
				clearTimeout(selector);
			}
			this.validChar = function (evt, charCode) {
				if ((evt.ctrlKey) || (evt.altKey)) {
					return false;
				} else if ((evt.shiftKey) && charInRanges(charCode)) {
					return true;
				} else if (evt.shiftKey) {
					return false;
				} else {
					return charInRanges(charCode);
				}
			}
			this.setDisplayStatus = function (bool) {
				if (bool == true || bool == false) {
					displayStatus = bool;
				}
			}
			this.getDisplayStatus = function () {
				return displayStatus;
			}
			this.cancel = function (evt) {
				if (evt) {
					evt.preventDefault();
				} else {
					window.event.returnValue = false;
				}
				return false;
			}
		}
		
		/*
		PUBLIC METHODS
		*/
		
		TypeAheadCombo.prototype.detectKey = function (evt){
			this.clearResetTimer();
			this.cancelDelay();
			var combo_letter = "";
			var combo_code = (evt) ? evt.keyCode : window.event ? window.event.keyCode : evt.which;
			var event = (evt) ? evt : window.event;
			if (combo_code <= 105 && combo_code >= 96) { // make up for numPad typing
				combo_code = combo_code - 48;
			}
			switch (combo_code) {
				case 27:	//ESC key
					this.reset();
					this.setIndex(this.getPrev());
					// Put a little delay to override NS6/Mozilla's built-in behavior of ESC inside select element
					setTimeout("document.forms['"+this.element.form.name+"'].elements['"+this.element.name+"'].selectedIndex = document.forms['"+this.element.form.name+"'].elements['"+this.element.name+"'].index",0);
					return false;
					break;
				case 13:	//ENTER key
				case 9:		//TAB key
					this.reset();
					if (this.element.onchange) {
						// set timer to prevent stack overflow in IE.
						setTimeout("document.forms['" + this.element.form.name + "'].elements['" + this.element.name + "'].onchange()", 1);
					}
					return true;
					break;
				case 8:		//BACKSPACE key
					this.setTyped(this.getTyped().substring(0,this.getTyped().length-1));
					if (this.getAcceptsNew() && this.getIndex() == 0) {
						this.makeNewValue();
					}
					if (this.getTyped() == "") {
						this.reset();
						this.setIndex(this.getPrev());
						this.element.selectedIndex = this.getIndex();
						if (evt) {
							evt.preventDefault();
						} else {
							window.event.returnValue = false;
						}
						return false;
					} else {
						this.setResetTimer();
					}
					break;
				case 33:	//PAGEUP key
				case 34:	//PAGEDOWN key
				case 35:	//END key
				case 36:	//HOME key
				case 38:	//UP arrow
				case 40:	//DOWN arrow
					this.reset();
					return true;
					break;
				case 37:	//LEFT arrow	(translates to %)
				case 39:	//RIGHT arrow	(translates to ')
					this.reset();
					return false;
					break;
				case 32:	//SPACE key	(not in accepted ranges)
					combo_letter = " ";
					this.setResetTimer();
					break;
				default:
					if (this.validChar(event, combo_code)) {
						combo_letter = String.fromKeyCode(combo_code);
						if (combo_letter.length > 1) {
							if (event.shiftKey) {
								combo_letter = combo_letter[1];
							} else {
								combo_letter = combo_letter[0];
							}
						}
						this.setResetTimer();
					} else {
						return true;
					}
					break;
			}
			this.type(combo_letter);
			if (this.getDisplayStatus()) {
				window.status = this.getTyped();
			}
			if (document.all) {
				return this.selectItem();
			} else {
				return this.delayedSelect();
			}
		}
		
		TypeAheadCombo.prototype.selectItem = function (){
			var i = this.element.options.length,
				match = false;
			do {
				if (this.element.options[--i].text.toUpperCase().indexOf(this.getTyped().toUpperCase()) == 0){
					this.element.selectedIndex = i;
					this.setIndex(i);	//remember selected index
					match = true;
				}
			} while (i > 0);
			if (match) {
				return false; // always return false;
			}
			if (this.getAcceptsNew()) {
				this.makeNewValue();
			} else {
				this.element.selectedIndex = this.getIndex();	//re-select previously selected option even if there's no match
			}
			return false;  //always return false
		}
		
		TypeAheadCombo.prototype.makeNewValue = function () {
			this.removeNewValue();
			var tmpText = this.getTyped(),tmpStart = tmpEnd = "",tmpArr,i;
			if (this.hasNullStarter()) {
				newOption = this.element.options[0];
			} else if (tmpText.length > 0) {
				newOption = document.createElement("option");
				this.element.insertBefore(newOption, this.element.firstChild);
				this.newOption = newOption;
			} else {
				this.newOption = null;
				return;
			}
			tmpArr = tmpText.split(" ");
			i = tmpArr.length;
			if (tmpText.indexOf(" ") >= 0) {
				do {
					tmpStart = tmpArr[--i].substring(0,1);
					tmpEnd = tmpArr[i].substring(1,tmpArr[i].length);
					tmpArr[i] = tmpStart.toUpperCase() + tmpEnd.toLowerCase();
				} while (i);
				tmpText = tmpArr.join(" ");
			} else {
				tmpStart = tmpText.substring(0,1);
				tmpEnd = tmpText.substring(1,tmpText.length);
				tmpText = tmpStart.toUpperCase() + tmpEnd.toLowerCase();
			}
			newOption.value = tmpText;
			newOption.text = tmpText;
			this.element.selectedIndex = 0;
			this.setIndex(0);
		}
		
		TypeAheadCombo.prototype.removeNewValue = function () {
			if (this.hasNullStarter()) {
				this.element.options[0].text = '';
				this.element.options[0].value = '';
			} else if (this.newOption) {
				this.element.remove(this.newOption);
			}
		}
		
		TypeAheadCombo.prototype.setValueByValue = function (aValue) {
			var i = this.element.options.length;
			do {
				if (this.element.options[--i].value == aValue) {
					this.element.selectedIndex = i;
					break;
				}
			} while (i);
		}
		
		TypeAheadCombo.prototype.reset = function () {
			theCombo = this;
			if (this.combo) {
				theCombo = this.combo;
			}
			theCombo.element.selectedIndex = theCombo.getIndex();
			theCombo.resetTyped();
			if (theCombo.getDisplayStatus()) {
				window.status = window.defaultStatus ? window.defaultStatus : '';
			}
		}
		
		TypeAheadCombo.prototype.updateIndex = function (evt){
			var theCombo, theEl;
			if (evt && window.addEventListener) {
				// ready for handler with DOM2 event properties
				var e = new DOM2Event(evt, window.event, this);
				theEl = e.target;
			} else {
				theEl = this;
			}
			theCombo = theEl.combo;
			theCombo.setIndex(theEl.selectedIndex);
			theCombo.setPrev(theCombo.getIndex());
		}
		
		TypeAheadCombo.prototype.elementFocus = function (evt) {
			var theCombo;
			if (evt && window.addEventListener) {
				// ready for handler with DOM2 event properties
				var e = new DOM2Event(evt, window.event, this);
				theCombo = e.target.combo;
			} else {
				theCombo = this.combo;
			}
			theCombo.setIndex(theCombo.element.selectedIndex);
		}
		
		TypeAheadCombo.prototype.elementKeydown = function (evt) {
			var theCombo;
			if (evt && window.addEventListener) {
				// ready for handler with DOM2 event properties
				if (DOM2Event) {
					var e = new DOM2Event(evt, window.event, this);
				}
				theCombo = e.target.combo;
			} else {
				theCombo = this.combo;
			}
			if (!theCombo.detectKey(e)) {
				return theCombo.cancel(e);
			}
		}