// detección del navegador
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"
		},
		{
			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();


// otras cosillas
function pintaNube(id){
	var centro = document.getElementById("elemento"+id);
	var izq =  document.getElementById("lateralI"+id);
	var drc =  document.getElementById("lateralD"+id);
	var imagenC = "imagenes/globoC.png";
	var imagenI = "imagenes/globoI.png";
	var imagenD = "imagenes/globoD.png";
	var altura = '56px';
	var anchuraI = '28px';
	var anchuraD = '11px';
	
	// si es el explorer
	if (BrowserDetect.browser == "Explorer") {
		imagenC = "imagenes/cajaC.png";
		imagenI = "imagenes/cajaI.png";
		imagenD = "imagenes/cajaD.png";
		altura = '38px';
		anchuraI = '13px';
	}
	
	centro.style.height = altura;
	izq.style.height = altura;
	drc.style.height = altura;
	
	izq.style.width = anchuraI;
	drc.style.width = anchuraD;
	
	centro.style.backgroundImage='url('+ imagenC +')';
	izq.style.backgroundImage='url('+ imagenI +')';
	drc.style.backgroundImage='url('+ imagenD +')';
	centro.style.backgroundPosition='top left';
	centro.style.backgroundRepeat='repeat-x';
}

function despintaNube(id){
	var centro = document.getElementById("elemento"+id);
	var izq =  document.getElementById("lateralI"+id);
	var drc =  document.getElementById("lateralD"+id);
	
	centro.style.backgroundImage='none';
	centro.style.height = 'auto';
	
	izq.style.backgroundImage='none';
	drc.style.backgroundImage='none';
}