/* 
Title:		Main Javascript
Author: 	3 Crown Creative
*/

//----------------------------------------------------------------------
// FUNCTION: Housekeeping
//----------------------------------------------------------------------
function houseKeeping() {
	checkBrowser();
	
	window.addEvent('domready',function() {

		/*  (1) Make all links to external sites open in a new window  */
		$$('a[href^="http://"]').each(function(a) {   /* grab all complete linked anchors */
			var href = a.get('href');
			if(!href.contains(window.location.host)) {  /* if it's not this domain */
				a.setProperties({
					target: '_blank'
				});
				//a.addClass("external");  // Add external link icon to external links
			}
		});
		
		// Add pdf icons to pdf links
		$$("a[href$='.pdf']").each(function(a) {   
			var href = a.get('href');
				a.setProperties({
					rel: 'nofollow',
					target: '_blank'
				});
				a.addClass("pdf");
		});
		
		
		// Add txt icons to document links (doc, rtf, txt)
		$$("a[href$='.doc']","a[href$='.txt']", "a[href$='.rtf']").each(function(a) {   
			var href = a.get('href');
				a.setProperties({
					rel: 'nofollow',
					target: '_blank'
				});
				a.addClass("txt");
		});
	    
		// Add zip icons to Zip file links (zip, rar)
		$$("a[href$='.zip']","a[href$='.rar']").each(function(a) {   /* grab all complete linked anchors */
			var href = a.get('href');
				a.setProperties({
					rel: 'nofollow',
					target: '_blank'
				});
				a.addClass("zip");
		});

		
		/*  (2) Find all model image links (by the REL tag) and add the onclick function  */
	    var links = $$("a").filter(function(el) {
			return el.rel && el.rel.test(/^Image_Window/i);
		});
		$$(links).each (function(e1) {
			e1.addEvent('click', function() {
				return hs.expand(this);
			});
		});
		
		/*  (3) Find all model window links (by the REL tag) and add the onclick function  */
		var links = $$("a").filter(function(el) {
			return el.rel && el.rel.test(/^Text_Window/i);
		});
		$$(links).each (function(e1) {
			e1.addEvent('click', function() {
				return hs.htmlExpand (this, {objectType: 'iframe', width: 400,headingEval: 'this.a.title',wrapperClassName: 'titlebar' })
			});
		});

	});									 

}

//----------------------------------------------------------------------
// FUNCTION: add click event to index links	(for Sub Pages)												
//----------------------------------------------------------------------
function slideshow() {
	window.addEvent('domready',function() {
		
		/* settings */
		var showDuration = 3000;
		var container = $('slideshow-container');
		var images = container.getElements('img');
		var currentIndex = 0;
		
		document.addEvent('keydown', function(event) {
			if (event.key == 'right') show();
			if (event.key == 'left') show(currentIndex != 0 ? currentIndex -1 : images.length-1);
		});
	
	
		/* worker */
		var show = function(to) { 
			images[currentIndex].fade('out');
			images[currentIndex = ($defined(to) ? to : (currentIndex < images.length - 1 ? currentIndex+1 : 0))].fade('in');
		};
		
		images.each(function(img,i){
			if(i > 0) { img.set('opacity',0); }
		});
		
		/* new: control: next and previous */
		var next = $('next');
		next.addEvent ('click', function(event) {
				event.preventDefault();
				show();		
		
		});
		var previous = $('prev');
		previous.addEvent ('click', function(event) {
				event.preventDefault();	 
				show(currentIndex != 0 ? currentIndex -1 : images.length-1);
		
		});
		
	
	});
}


//----------------------------------------------------------------------
// FUNCTION: Add Stylesheet when javascript is enabled
//----------------------------------------------------------------------
function linkCSS(title) { 
   var i, a, main;
   for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
     	if (a.getAttribute("rel").indexOf("style") != -1  && a.getAttribute("title")== title) {  
			a.disabled = true;
			a.disabled = false;
		}
    }
}


//---------------------------------------------------------------------------
//  FUNCTION: Fade in
//---------------------------------------------------------------------------
function fadeIn(imgID,time) {
	var myFadeIn = new Fx.Tween($(imgID), {
		property: 'opacity',
		duration: time
	})
	myFadeIn.start(0,1);
}

//---------------------------------------------------------------------------
//  FUNCTION: Check for browsers N4/IE4/IE5 Mac or older....
//---------------------------------------------------------------------------
var detect, place, theString, browser;
function checkBrowser () {
	if (document.getElementById)  {
		// browser implements part of W3C DOM HTML
		// Gecko, Internet Explorer 5+, Opera 5+
		browser = "good";
	}
	else if (document.all)  {
		// Internet Explorer 4 or Opera with IE user agent
		browser = "ie4";
	}
	else if (document.layers) {
		// Navigator 4
		browser = "net4";
		location.href = "oldbrowser.html";
	}
	
	detect = navigator.userAgent.toLowerCase();
	if (detect.indexOf("safari") != -1) 
		document.write('<link rel="stylesheet" type="text/css" href="styles/safari.css" />');


	if (checkIt('msie')) { // browser is IE
		var version = detect.charAt(place + theString.length);
		if (checkIt('mac'))
			location.href = "maciebrowser.html";
	}
}
function checkIt(string) {
	place = detect.indexOf(string) + 1;
	theString = string;
	return place;
}
//----------------------------------------------------------------------
// FUNCTION: Open a new window
//----------------------------------------------------------------------
function targetBlank (url) {
  blankWin = window.open(url,'_blank','menubar=yes,toolbar=yes,location=yes,directories=yes,fullscreen=no,titlebar=yes,hotkeys=yes,status=yes,scrollbars=yes,resizable=yes');
}