String.prototype.htmlEntities = function () {
   return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
};

function validateComments(theform) {
	if (theform.name.value != '' && theform.email.value != '' && theform.comments.value != '') {
		theform.submitted.value='y';
		theform.submit();
	} else {
		alert('Please fill in all the required fields');
	}
}

function validateContact(theform) {
	if (theform.firstname.value != '' && theform.lastname.value != '' && theform.email.value != '' && theform.comments.value != '') {
		theform.submitted.value='y';
		theform.submit();
	} else {
		alert('Please fill in all the required fields');
	}
}

function htmlEntities(string) {
   return string.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
};

function popUp(url,width,height,scrollbars,resizable,querystring,windowname) {
	/*
	Ultimate Pop Up Script
	Simple Example <a href="javascript:void(0);" onclick="popUp('test.php')">Pop Up</a>
	Normal Example <a href="javascript:void(0);" onclick="popUp('test.php','200','300')">Test</a>
	Full Example   <a href="javascript:void(0);" onclick="popUp('test.php','200','300', 0, 1,'?cid=1', 'popup1')">Test 2</a>
	
	To use default just use null in t place of the variable
	  IE: <a href="javascript:void(0);" onclick="popUp('test.php','200','300', null, null,'?cid=1', 'popup1')">Test 2</a>
	  This uses the default variable for scrollbars and resizable
	*/ 
	if(typeof width == "undefined" || width == null)	var width	= 500;
	if(typeof height == "undefined" || height == null)	var height	= 400;
	
	if(typeof scrollbars == "undefined" || scrollbars == null)		var scrollbars	= 0;
	if(typeof resizable == "undefined" || resizable == null)		var resizable	= 0;
	if(typeof querystring == "undefined" || querystring == null)	var querystring	= '';
	if(typeof windowname == "windowname" || windowname == null)		var windowname	= 'popup';
	
	var full_url = url + querystring;

	var w;
	w = window.open(full_url, windowname, "width="+width+",height="+height+",toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars="+scrollbars+",resizable="+resizable);
	w.focus();
}

function swapListingImage(whichImage, image_div, image_resizer, width) {
	if (whichImage != '') {
		if(typeof image_resizer == "undefined" || width == null)	var image_resizer	= 'imgresize.inc.php';
		if(typeof width == "undefined" || width == null)			var width			= 200;
		
		document.getElementById(image_div).src = 'inc_php/'+image_resizer+'?w='+width+'&constrain=1&img='+whichImage;
	}
}

function bookmarkSite(page_url, page_title) {
	/*
	Ultimate Bookmark/Add-to-Favorites Script
	Browsers Compatible: IE5+ Win, IE5 Mac, FF (Win/*nix), Netscape 6+, Opera 7+, Safari, Konqueror 3, iCab 3
	*/
	var user_agent	= navigator.userAgent.toLowerCase();
	var isKonq		= (user_agent.indexOf('konqueror') != -1);
	var isSafari	= (user_agent.indexOf('webkit') != -1);
	var isMac		= (user_agent.indexOf('mac') != -1);
	var buttonStr	= isMac ? 'Command/Cmd' : 'CTRL';

	if(window.external && (!document.createTextNode || (typeof(window.external.AddFavorite) == 'unknown'))) {
		// IE5+ Win
		window.external.AddFavorite(page_url, page_title);
	} else if (window.sidebar) {
		// FF Win
		window.sidebar.addPanel(page_title, page_url, "");
	} else if(isKonq) {
		// Konquerer
		alert('You need to press CTRL + B to bookmark our site.');
	} else if(window.opera) {
		// Opera (doesn't support bookmarking
		void(0);
	} else if(window.home || isSafari) {
		// FF *nix, Netscape, Safari, iCab
		alert('You need to press '+buttonStr+' + D to bookmark our site.');
	} else if(!window.print || isMac) {
		// IE Mac and Safari 1.0
		alert('You need to press Command/Cmd + D to bookmark our site.');    
	} else {
		alert('In order to bookmark this site you need to do so manually through your browser.');
	}
}

function uTimeout() {
	/*
	Ultimate Timeout Script
	--creating the timeout object--
	var myTimeout = new uTimeout()
	--standard--
	myTimeout.init(myFunction, 1000); // dont use the '()' on the function name..
	--repeating--
	myTimeout.init(myFunction, 1000, 3); // will repeat 3 times
	--passing arguments--
	myTimeout.init(myFunction, 1000, null, 'foo', 'bar', 1.6); // will call myFunction('foo', 'bar', 1.6)
	--cancelling the timeout--
	myTimeout.cancel();
	*/
	var _func						= null;		// function to call when the timeout expires
	var _timeout				= null;		// timeout length (milliseconds)
	var _repeat					= 0;			// number of times to repeat the function
	var _args						= [];			// array of arguments to pass to the function
	var _timeoutRunning	= false;	// flag to see if timeout is already running
	var _cancelled			= false;	// flag to see if timeout has been cancelled
	var _timeoutNum			= null;		// holder for the timeout
	
	this.init = function(func, timeout, repeat) {
		var i;
        
		if (_timeoutRunning || !func || !timeout)
			return false; // timeout exists, no function specified, or no timeout specified
        
			_func						= func;
			_timeout				= timeout;
			_timeoutRunning	= true;
			_cancelled			= false;
			_repeat					= repeat ? repeat : 0;
			_args						= [];
			
			for (i=3; i<arguments.length; i++) {
				// build the argument list
				_args[_args.length] = arguments[i];
			}
		
			// set the timeout!!
			_timeoutNum = setTimeout(_exec, _timeout);
		}

		this.cancel = function() {
		// cancel the timeout
		clearTimeout(_timeoutNum);
		_cancelled			= true;
		_timeoutRunning		= false;
		_repeat				= 0;
	}
    
	function _exec() {
		_timeoutRunning = false;
		if (_cancelled)
			return; // timeout was cancelled
			
		_func.apply(null, _args);
        
		if (_repeat > 0) {
			// the timeout is to be repeated!
			_repeat--;
			_timeoutNum = setTimeout(_exec, _timeout);
		}
	}
}