// Ajax common functions
function GetXmlHttpObject() {
  var xmlhttp;
 
  if(window.XMLHttpRequest){
    xmlhttp = new XMLHttpRequest();
  }
  else if (window.ActiveXObject){
    xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
    if (!xmlhttp){
        xmlhttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
    
}
  return xmlhttp;
}

function hideFeedback(feedbackId) {
	document.getElementById(feedbackId).style.display = "none";
}

function addslashes(str) {
	str=str.replace(/\'/g,"\\'");
	str=str.replace(/\"/g,'\\"');
	//str=str.replace(/\\/g,'\\\\');
	//str=str.replace(/\0/g,'\\0');
	return str;
}

function doUpdateContents(tableName, language, feedbackId) {
	// implement AJAX
	var xmlHttp = GetXmlHttpObject();
	if (xmlHttp == null) {
		alert ("Browser does not support HTTP Request")
		return
	}
	var contents = trim(document.getElementById(rteName).contentWindow.document.body.innerHTML);
	contents = contents.replace(/\r\n/g, "<br>");
	contents = contents.replace(/\n/g, "<br>");
	var url = "./library/common_addin.php";
	var parameters = "type=save";
	parameters += "&tableName=" + tableName;
	parameters += "&language=" + language;
	parameters += "&object=" + Base64.encode(contents);
	//
	xmlHttp.open('POST', url, true);
	xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded; charset=utf-8");
	xmlHttp.setRequestHeader("Content-length", parameters.length);	
	xmlHttp.send(parameters);
	document.getElementById(feedbackId).style.display = "";
	window.setTimeout("hideFeedback('"+feedbackId+"')", 1000);  // miliseconds
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  	window.open(theURL,winName,features);
}

var Base64 = {  
  
    // private property  
    _keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",  
  
    // public method for encoding  
    encode : function (input) {  
        //var output = "";  
		var output = input;
		/*
        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 addslashes(output);  
    },  
  
    // public method for decoding
    decode : 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._utf8_decode(output);

        return output;

    },

  
    // 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;
    }

  
}