/** LIBRARY OF JAVASCRIPT FUNCTIONS **/

/********************************************/
/* Browser Detect Function                  */
/* 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: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari"
		},
		{
			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.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();



/**************************/
/* Venue Finder Functions */
/* uses Prototype library */
/**************************/

function venueFilter(vfVenueId, vfRegionId, regionVenuesArr)
{
	var selectVenue = $(vfVenueId);
    var selectRegion = $(vfRegionId);
    selectedRegion = selectRegion.options[selectRegion.selectedIndex].value;

    // If a region is selected then filter the venues dropdown
    if (selectedRegion != "") {
		selectVenue.innerHTML = "";
		selectVenue.options[0] = new Option("Select a venue","");
		selectVenue.options[1] = new Option("--------------","");
		
		for(i=2; i<(regionVenuesArr[selectedRegion].length)+2; i++) {
			venue = regionVenuesArr[selectedRegion][i-2];
			selectVenue.options[i] = new Option(venue,convertSpaces(venue));
		}
	}
	// Repopulate original venues list
	else {
		selectVenue.innerHTML = "";
		selectVenue.options[0] = new Option("Select a venue","");
		selectVenue.options[1] = new Option("--------------","");
		for(i=2; i<(regionVenuesArr["All"].length)+2; i++) {
			venue = regionVenuesArr["All"][i-2];
			selectVenue.options[i] = new Option(venue,convertSpaces(venue));
		}
	}
}

/* 
 Function that replaces whitespace with "+" using regular expressions
*/
function convertSpaces(str)
{
	var regexp = /\s/g;
	var result = str.replace(regexp,"+");
	return result;
}

function extracheck(obj)
{
	return !obj.disabled;
}


function embedflash()
{
	document.write('<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="370" height="85">\n');
    document.write('<param name="movie" value="rotate_img_2.swf">\n');
    document.write('<param name="quality" value="high">\n');
    document.write('<embed src="rotate_img_2.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="370" height="85"></embed>\n');
    document.write('</object>\n');
}