// singleton class constructor
function Logger() {
	// fields
	this.req;

	this.log = log;
}

// log method of Logger class
function log(err) {
	// feature sniff
	if (window.XMLHttpRequest) this.req = new XMLHttpRequest();
	else if (window.ActiveXObject) this.req =
		new ActiveXObject("Microsoft.XMLHTTP");
	else return; // throw up our hands in despair
	// set the method and URI
	var param_str = 'err=1' + '&err_name='+ err.name + '&errmsg=' + err.message + '&location=' + err.location;
	this.req.open("GET", "http://www.zenbu.net.nz/ajax_data.php?" + param_str);
	// set the request headers. REFERER will be the top-level
	// URI which may differ from the location of the error if
	// it occurs in an included .js file
	this.req.setRequestHeader('REFERER', location.href);
	//this.req.setRequestHeader('content-type', 'text/xml');
	// function to be called when the request is complete
	this.req.onreadystatechange = errorLogged;
	this.req.send("");
	// if the request doesn't complete in 10 seconds,
	// something is up
	this.timeout = window.setTimeout("abortLog();", 10000);
}

// should only be one instance of the logger
var logger = new Logger();

// we tried, but if there is a connection error, it is hopeless
function abortLog() {
	logger.req.abort();
}

// called when the state of the request changes
function errorLogged() {
	if (logger.req.readyState != 4) return;
	window.clearTimeout(logger.timeout);
	//request completed
	//if (logger.req.status >= 400)
		//alert('Attempt to log the error failed.');
}

function trapError(msg, URI, ln) {
	// wrap our unknown error condition in an object
	var error = new Error(msg);
	error.location = URI + ', line: ' + ln; // add custom property
	logger.log(error);
	//warnUser();
	return true; // stop the yellow triangle
}
window.onerror = trapError;

function warnUser() {
	//alert("An error has occurred while processing this page."+
	//		" Our system engineers have been alerted!");
	// drastic action
	// location.href = 'http://www.zenbu.net.nz/ajax_data.php?err=1';
}

function focusElement(formName, elemName) {
  var elem = document.forms[formName].elements[elemName];
  elem.focus();
  elem.select();
}
function toggle_element_visibility(id) {
       var e = document.getElementById(id);
       if(e.style.display == 'block')
          e.style.display = 'none';
       else
          e.style.display = 'block';
}
function convertToUpper(formName, elemName) {
  var elem = document.forms[formName].elements[elemName];
  elem.value = elem.value.toUpperCase();
  elem.focus();
}
function disable(formName, control){
  control.disabled = true;
  document.forms[formName].submit();
}

function isEmpty(elem) {
  var str = elem.value;
  var re = /./;
  if(!str.match(re)) {
	focusElement(elem.form.name, elem.name);
	return true;
  } else {
	return false;
  }
}
function isNotEmpty(elem) {
  return !isEmpty(elem);
}
function isNumber(elem) {
	try{
	  var str = elem.value;
	  var re = /^-{0,1}\d*\.{0,1}\d+$/;
	  str = str.toString();
	  if (!str.match(re)) {
		focusElement(elem.form.name, elem.name);
		return false;
	  }
	  return true;
	} catch (e) {

	}
}
function isValidUsername(elem) {
  var str = elem.value;
  var re = /^[.0-9a-zA-Z_-]+$/;
  if (!str.match(re)) {
	focusElement(elem.form.name, elem.name);
	return false;
  } else {
	return true;
  }
}
function isValidEmail(elem) {
try {
  var str = elem.value;
	var re = /^[\_]*([A-Za-z0-9]+(\.|\_|\-*)?)+@([A-Za-z0-9\-][A-Za-z0-9\-]+(\.|\-*\.))+[A-Za-z]{2,6}$/;
  if (!str.match(re)) {
	focusElement(elem.form.name, elem.name);
	return false;
  } else {
	return true;
  }
} catch (e) {

}
}

function isValidPassword(elem) {
  var str = elem.value;
  var re = /^[0-9a-zA-Z]{6,}$/;
  if (!str.match(re)) {
	focusElement(elem.form.name, elem.name);
	return false;
  } else {
	return true;
  }
}
function isAlphanumeric(str) {
	var re = /^[0-9a-zA-Z]+$/;
	if (str.match(re)) {
		return true;
	} else {
		return false;
	}
}
function fnSelectText(objId)
{
   fnDeSelectText();
   if (document.selection) 
   {
      var range = document.body.createTextRange();
      range.moveToElementText(document.getElementById(objId));
      range.select();
   }
   else if (window.getSelection) 
   {
      var range = document.createRange();
      range.selectNode(document.getElementById(objId));
      window.getSelection().addRange(range);
   }
}
function fnDeSelectText() 
{
   if (document.selection)
             document.selection.empty();
   else if (window.getSelection)
              window.getSelection().removeAllRanges();
}
function focusNext(form, elemName, evt) {
  evt = evt ? evt : event;
  var charCode = evt.charCode ? evt.charCode : ( evt.which ? evt.which : evt.keyCode );
  if (charCode == 13 || charCode == 3) {
	form.elements[elemName].focus();
	return false;
  }
  return true;
}

function changeText(spanId,text)
{
  var node;
  /* Find the span node. */
  if (document.getElementById)
    {
      node = document.getElementById(spanId);
    }
  else if (document.all)
    {
      node = document.all[spanId];
    }
  else
    {
      alert("Constructs document.getElementByID " +
        "and document.all are not available in this browser. " +
        "You need to use a newer browser.");
      return;  
    }

  if (!node)
    {
      return;
    }

  /* Insert the text. */

  if (typeof node.innerHTML == "string")
    {
      /* Make innerHTML act like the simple text insert. */
      node.innerHTML = text.replace(
                 /&/g, "&");
    }    
  else if (node.appendChild &&
      document.createTextNode)
    {    
       /* Since this is plan text, prevent multiple
          blanks from being compressed into one. */
       var theData = text.value.replace(/ /g, "\xA0");

       /* If a node already exists, assume we
          created it on a prior click by the user. */
       var nextNode = node.firstChild;
       if(nextNode)
         {  
           /* Yes, replace the text. */
           nextNode.data = theData;
         }
       else
         {
           /* No, Insert the new node. */
           node.appendChild(
                document.createTextNode(theData));
         }    
    }
  else
   {
      alert("Functions to insert text are not available. " +
            "You need to use a newer browser.");
      return;
   }

}
Array.prototype.inArray = function (value) {
	var i;
	for (i=0; i < this.length; i++) {
		if (this[i] === value) {
			return true;
		}
	}
	return false;
};

function addEvent( obj, type, fn ) {
	if (obj.addEventListener) {
		obj.addEventListener( type, fn, false );
		EventCache.add(obj, type, fn);
	}
	else if (obj.attachEvent) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
		EventCache.add(obj, type, fn);
	}
	else {
		obj["on"+type] = obj["e"+type+fn];
	}
}
	
var EventCache = function(){
	var listEvents = [];
	return {
		listEvents : listEvents,
		add : function(node, sEventName, fHandler){
			listEvents.push(arguments);
		},
		flush : function(){
			var i, item;
			for(i = listEvents.length - 1; i >= 0; i = i - 1){
				item = listEvents[i];
				if(item[0].removeEventListener){
					item[0].removeEventListener(item[1], item[2], item[3]);
				};
				if(item[1].substring(0, 2) != "on"){
					item[1] = "on" + item[1];
				};
				if(item[0].detachEvent){
					item[0].detachEvent(item[1], item[2]);
				};
				item[0][item[1]] = null;
			};
		}
	};
}();
addEvent(window,'unload',EventCache.flush);

/*
Sweet Titles (c) Creative Commons 2005
http://creativecommons.org/licenses/by-sa/2.5/
Original author: Dustin Diaz | http://www.dustindiaz.com
*/
var sweetTitles = {
	xCord : 0,								// @Number: x pixel value of current cursor position
	yCord : 0,								// @Number: y pixel value of current cursor position
	tipElements : ['a','abbr','acronym','input'],		// @Array: Allowable elements that can have the toolTip
	obj : Object,							// @Element: That of which you're hovering over
	tip : Object,							// @Element: The actual toolTip itself
	ele : Object,
	active : 0,								// @Number: 0: Not Active || 1: Active
	init : function() {
		if ( !document.getElementById ||
			!document.createElement ||
			!document.getElementsByTagName ) {
				alert('sweetTitles will not be available');
			return;
		}
		var i,j;
		this.tip = document.createElement('div');
		this.tip.id = 'toolTip';
		document.getElementsByTagName('body')[0].appendChild(this.tip);
		this.tip.style.top = '0';
		this.tip.style.visibility = 'hidden';
		var tipLen = this.tipElements.length;
		for ( i=0; i<tipLen; i++ ) {
			var current = document.getElementsByTagName(this.tipElements[i]);
			var curLen = current.length;
			for ( j=0; j<curLen; j++ ) {
				if(current[j].getAttribute('title') != null && current[j].getAttribute('title') != '') {
					addEvent(current[j],'mouseover',this.tipOver);
					addEvent(current[j],'mouseout',this.tipOut);
					current[j].setAttribute('tip',current[j].title);
					current[j].removeAttribute('title');
				}
			}
		}
	},
	updateXY : function(e) {
		if ( document.captureEvents ) {
			sweetTitles.xCord = e.pageX;
			sweetTitles.yCord = e.pageY;
		} else if ( window.event.clientX ) {
			sweetTitles.xCord = window.event.clientX+document.documentElement.scrollLeft;
			sweetTitles.yCord = window.event.clientY+document.documentElement.scrollTop;
		}
	},
	tipOut: function() {
		if ( window.tID ) {
			clearTimeout(tID);
		}
		if ( window.opacityID ) {
			clearTimeout(opacityID);
		}
		sweetTitles.tip.style.visibility = 'hidden';
	},
	checkNode : function() {
		var trueObj = this.obj;
		if ( this.tipElements.inArray(trueObj.nodeName.toLowerCase()) ) {
			return trueObj;
		} else {
			return trueObj.parentNode;
		}
	},
	tipOver : function(e) {
		sweetTitles.obj = this;
		tID = window.setTimeout("sweetTitles.tipShow()",100);
		sweetTitles.updateXY(e);
	},
	tipShow : function() {
		var scrX = Number(this.xCord);
		var scrY = Number(this.yCord);
		var tp = parseInt(scrY+15);
		var lt = parseInt(scrX+10);
		var anch = this.checkNode();
		this.tip.innerHTML = "<p>"+anch.getAttribute('tip')+"</p>";
		if ( parseInt(document.documentElement.clientWidth+document.documentElement.scrollLeft) < parseInt(this.tip.offsetWidth+lt) ) {
			this.tip.style.left = parseInt(lt-(this.tip.offsetWidth+10))+'px';
		} else {
			this.tip.style.left = lt+'px';
		}
		if ( parseInt(document.documentElement.clientHeight+document.documentElement.scrollTop) < parseInt(this.tip.offsetHeight+tp) ) {
			this.tip.style.top = parseInt(tp-(this.tip.offsetHeight+10))+'px';
		} else {
			this.tip.style.top = tp+'px';
		}
		this.tip.style.visibility = 'visible';
		this.tip.style.opacity = '.1';
		this.tipFade(10);
	},
	tipFade: function(opac) {
		var passed = parseInt(opac);
		var newOpac = parseInt(passed+10);
		if ( newOpac < 80 ) {
			this.tip.style.opacity = '.'+newOpac;
			this.tip.style.filter = "alpha(opacity:"+newOpac+")";
			opacityID = window.setTimeout("sweetTitles.tipFade('"+newOpac+"')",20);
		}
		else {
			this.tip.style.opacity = '.80';
			this.tip.style.filter = "alpha(opacity:80)";
		}
	}
};
function pageLoader() {
	sweetTitles.init();
}
addEvent(window,'load',pageLoader);