// Common javascript functions

function openPopup(url,width,height){
	var popup = window.open(url,"Popup","width="+width+",height="+height+",top=50,left=50,resizable=1,scrollbars=1");
}

// Identifies Client Software
// INPUT: browser details
// OUTPUT: Creates a Global Object For Use By Pages
var jsBrowserDetect = {

	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.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.userAgent, subString: "Netscape", identity: "Netscape" },
		{ string: navigator.userAgent, subString: "MSIE", identity: "Explorer", versionSearch: "MSIE" },
		{ string: navigator.userAgent, subString: "Gecko", identity: "Mozilla", versionSearch: "rv" },
		{ 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" }
		]

};
jsBrowserDetect.init();