var __mesdhelper = new __mesdhelperclass();

function __mesdgetclientwidth() {
    return document.compatMode == 'CSS1Compat' && !window.opera ? document.documentElement.clientWidth : document.body.clientWidth;
}

function __mesdgetclientheight() {
    return document.compatMode == 'CSS1Compat' && !window.opera ? document.documentElement.clientHeight : document.body.clientHeight;
}

function __mesdresizeiframeheight(iframe,minsize) {
    var h = __mesdgetclientheight() - 20;
    if (h < minsize) {h = minsize; }
    iframe.height = h+'px';
}



function __mesdhelperclass() {
     var _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";

     this._mesdgetclientwidth = function() {
         return document.compatMode == 'CSS1Compat' && !window.opera ? document.documentElement.clientWidth : document.body.clientWidth;
     }

     this._mesdgetclientheight = function() {
         return document.compatMode == 'CSS1Compat' && !window.opera ? document.documentElement.clientHeight : document.body.clientHeight;
     }

     this._mesdresizeiframeheight = function(iframe, minsize, reservedheight) {
         var h = this._mesdgetclientheight() - reservedheight;
         if (h < minsize) { h = minsize; }
         iframe.height = h + 'px';
     }


     this._mesdbase64encode = function(input) {
            var output = "";
            var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
            var i = 0;

            input = Base64._utf8_encode(input);

            while (i < input.length) {

                chr1 = input.charCodeAt(i++);
                chr2 = input.charCodeAt(i++);
                chr3 = input.charCodeAt(i++);

                enc1 = chr1 >> 2;
                enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
                enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
                enc4 = chr3 & 63;

                if (isNaN(chr2)) {
                    enc3 = enc4 = 64;
                } else if (isNaN(chr3)) {
                    enc4 = 64;
                }

                output = output +
			this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) +
			this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);

            }
            return output;
        }

        this._mesdbase64decode = function(input) {
            var output = "";
            var chr1, chr2, chr3;
            var enc1, enc2, enc3, enc4;
            var i = 0;

            input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");

            while (i < input.length) {

                enc1 = this._keyStr.indexOf(input.charAt(i++));
                enc2 = this._keyStr.indexOf(input.charAt(i++));
                enc3 = this._keyStr.indexOf(input.charAt(i++));
                enc4 = this._keyStr.indexOf(input.charAt(i++));

                chr1 = (enc1 << 2) | (enc2 >> 4);
                chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
                chr3 = ((enc3 & 3) << 6) | enc4;

                output = output + String.fromCharCode(chr1);

                if (enc3 != 64) {
                    output = output + String.fromCharCode(chr2);
                }
                if (enc4 != 64) {
                    output = output + String.fromCharCode(chr3);
                }

            }
            output = Base64._mesdutf8_decode(output);
            return output;
        }

        this._mesdutf8_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;
        }

        this._mesdutf8_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;
        }

        this._mesdltrim = function(value) {
            var re = /\s*((\S+\s*)*)/;
            return value.replace(re, "$1");
        }

        this._mesdrtrim = function(value) {
            var re = /((\s*\S+)*)\s*/;
            return value.replace(re, "$1");
        }

        this._mesdtrim = function(value) {
            return this._mesdltrim(this._mesdrtrim(value));
        }

        this._mesdreturnresults = function() {
            this.text1 = '';
            this.text2 = '';
            this.text3 = '';
            this.completed = false;
            this._clear = function() {
                this.text1 = '';
                this.text2 = '';
                this.text3 = '';
                this.completed = false;
            }

        }



    }