function keepDigits(str) {
    return str.replace(/[^0-9]/g, "");
}

window.onload = function () {
    set_footer();
}

function set_footer() {
    var yHeight = 0;
    var mc = 0;
    var mb = 0;
    var mf = 0;
    var n = document.getElementsByTagName('div');
    for (s = 0; s < n.length; s++) {
        nHeight = n.item(s).offsetTop + n.item(s).offsetHeight;
        if (yHeight < nHeight) yHeight = nHeight;
        if (n.item(s).className == 'main') mc = n.item(s);
        if (n.item(s).className == 'footer') {
            mf = n.item(s);
            n.item(s).style.display = 'block';
        }
    }
    yHeight = yHeight + 10;
    if (mc) {
        mc.style.height = yHeight + "px";
    }
}

function search() {
    var String = Url.encode(document.getElementById("txt_searchfield1").value);
    window.location.href = "Searchresult.aspx?type=2&search=" + String;
}

function searchfield_change(e) {
    e = e || window.event;
    var keynum = e.keyCode || e.which;
    if (keynum == 13) {
        search();
        return false;
    }
}

/**
*
*  URL encode / decode
*  http://www.webtoolkit.info/
*
**/

var Url = {

    // public method for url encoding
    encode: function (string) {
        return escape(this._utf8_encode(string));
    },

    // public method for url decoding
    decode: function (string) {
        return this._utf8_decode(unescape(string));
    },

    // private method for UTF-8 encoding
    _utf8_encode: function (string) {
        string = string.replace(/\r\n/g, "\n");
        var utftext = "";

        for (var n = 0; n < string.length; n++) {

            var c = string.charCodeAt(n);

            if (c < 128) {
                utftext += String.fromCharCode(c);
            }
            else if ((c > 127) && (c < 2048)) {
                utftext += String.fromCharCode((c >> 6) | 192);
                utftext += String.fromCharCode((c & 63) | 128);
            }
            else {
                utftext += String.fromCharCode((c >> 12) | 224);
                utftext += String.fromCharCode(((c >> 6) & 63) | 128);
                utftext += String.fromCharCode((c & 63) | 128);
            }

        }

        return utftext;
    },

    // private method for UTF-8 decoding
    _utf8_decode: function (utftext) {
        var string = "";
        var i = 0;
        var c = c1 = c2 = 0;

        while (i < utftext.length) {

            c = utftext.charCodeAt(i);

            if (c < 128) {
                string += String.fromCharCode(c);
                i++;
            }
            else if ((c > 191) && (c < 224)) {
                c2 = utftext.charCodeAt(i + 1);
                string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
                i += 2;
            }
            else {
                c2 = utftext.charCodeAt(i + 1);
                c3 = utftext.charCodeAt(i + 2);
                string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
                i += 3;
            }

        }

        return string;
    }

}