function CheckFocus(x, val) {
    if (x.value == val)
        x.value = "";
}
function CheckNotFocus(x, val) {
    if (x.value == '')
        x.value = val;
}
function Validate() {
    var que = document.getElementById('txtQue').value;
    var donde = document.getElementById('txtDonde').value;
    if (que == "" || que == "¿Que busco?" || que == "Find") {
        alert('El que es necesario!!');
        return false;
    }
    if (donde == "" || donde == "¿Dónde?" || donde == "Location") {
        alert('El donde es necesario!!');
        return false;
    }
}
function urlCorrecta(strurl) {
    if (strurl == null) return;
    var re = new RegExp("[$%#@!*?;,:~`+=(){}|\\<>/^&.'´]", "g"); 
    strurl = strurl.toLowerCase().replace(/c#/g, "C-Sharp");
    strurl = strurl.capitalize();
    strurl = strurl.replace(re, "");
    strurl = trim("[", strurl);
    strurl = trim("]", strurl);
    strurl = trim(" ", strurl);
    strurl = trim("-", strurl);
    strurl = strurl.replace(/vb.net/g, "VB-Net");
    strurl = strurl.replace(/asp.net/g, "Asp-Net");
    strurl = strurl.replace(/á/g, "a");
    strurl = strurl.replace(/é/g, "e");
    strurl = strurl.replace(/í/g, "i");
    strurl = strurl.replace(/ó/g, "o");
    strurl = strurl.replace(/ú/g, "u");
    strurl = strurl.replace(/ñ/g, "n");
    strurl = strurl.replace(/ü/g, "u");
    strurl = strurl.replace(/Ü/g, "U");
    strurl = strurl.replace(/\.+/g, "-");
    strurl = strurl.replace(/ /g, "-");
    strurl = strurl.replace(/--/g, "-");
    strurl = strurl.replace(/---/g, "-");
    strurl = strurl.replace(/----/g, "-");
    strurl = strurl.replace(/-----/g, "-");
    strurl = strurl.replace(/----/g, "-");
    strurl = strurl.replace(/---/g, "-");
    strurl = strurl.replace(/--/g, "-");
    strurl = strurl.replace(/----/g, "-");
    strurl = trim(" ", strurl);
    strurl = trim("-", strurl); 
    return strurl;
 }
function trim(_char, _cadena) { for (i = 0; i < _cadena.length; ) { if (_cadena.charAt(i) == _char) { _cadena = _cadena.substring(i + 1, _cadena.length); } else { break; } } for (i = _cadena.length - 1; i >= 0; i = _cadena.length - 1) { if (_cadena.charAt(i) == _char) { _cadena = _cadena.substring(0, i); } else { break; } } return _cadena; }
String.prototype.capitalize = function () {
    return this.replace(/(^|\s)([a-z])/g, function (m, p1, p2) { return p1 + p2.toUpperCase(); });
};
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();