var currentPage = 0;
var	numPages = 0;

function resetSelected() {
	$('.subnav-wrapper').slideUp('slow');
	$('.menulink').removeClass('selected');
}

function expandSelected() {
	$('.menulink.selected').parent().find('.subnav-wrapper').slideDown('slow');
}

$(function(){
	$('.menulink').click(function(){
		if (!$(this).hasClass('selected')){
			resetSelected();
			$(this).parent().find('.subnav-wrapper').slideDown('slow');
			$(this).addClass('selected');
		} else {
			resetSelected();
		}
		return false;
	});
	
	$('.arrows a.prev').click(function(){
		if (currentPage > 1){
			$.scrollTo('#page'+(currentPage - 1), 'slow', {offset:-132});
			currentPage --;
		}
		return false;
	});

	$('.arrows a.next').click(function(){
		if (currentPage < numPages){	
			$.scrollTo('#page'+(currentPage + 1), 'slow', {offset:-132});
			currentPage ++;
		} else {
			$.scrollTo('#top', 'slow');
			currentPage = 0;
		}
		return false;
	});
	
	expandSelected();
	numPages = $('a.page').length;
	
	if(BrowserDetect.OS == 'Mac' && (BrowserDetect.browser == 'Chrome' || BrowserDetect.browser == 'Safari')) $('.content h3').css('margin','0 0 36px 0');
});

// Browser detection script
// @author: Peter-Paul Koch, http://www.quirksmode.org/js/detect.html

var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{
			string: navigator.userAgent,
			subString: "Chrome",
			identity: "Chrome"
		},
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari",
			versionSearch: "Version"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			string: navigator.userAgent,
			subString: "iPhone",
			identity: "iPhone/iPod"
	    },
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();