var isIE = navigator.appName.indexOf("Microsoft") != -1;
var isFF = navigator.userAgent.indexOf("Firefox") != -1;
String.prototype.trim = function()
{
	return this.replace(/^\s+/, '').replace(/\s+$/, '');
}

function trimString(s)
{
	if (!s)
	{
		return "";
	}
	s = s.replace(/^\s+/, '').replace(/\s+$/, '');
	//s = s.replace(/&/g,"&amp;").replace(/>/g,"&gt;").replace(/</g,"&lt;");
	return s;
}

function containsInvalidChar(s)
{
	return s.indexOf(",") > 0 || 
		s.indexOf("<") > 0 || 
		s.indexOf(">") > 0 || 
		s.indexOf("&") > 0 || 
		s.indexOf("\"") > 0 ||
		s.indexOf("\'") > 0;
}

function hightlight(s,ks)
{
	if (!ks) return s;
	
	for (var i=0;i<ks.length;i++)
	{
		var myReg = new RegExp(ks[i],'gi');
		var sysString = "<b><span class=\"syskeyWord\">" + ks[i] + "</span></b>";
		s = s.replace(myReg,sysString);
		if (s.indexOf("syskeyWord") < 0)
		{
			var newString = "<b><span class=\"keyWord\">" + ks[i] + "</span></b>";
			s = s.replace(myReg,newString);
		}
	}
	return s;
}

function traverseForm(formObj)
{
	var len = formObj.elements.length;
	var u = "";
	for (var i=0;i<len;i++)
	{
		//console.log(formObj[i].type + "|" + formObj[i].name + "|" + formObj[i].value);
		if (formObj[i].disabled)
		{
			continue;
		}
		if (("hidden" == formObj[i].type || "text" == formObj[i].type) && formObj[i].value != "")
		{
			u += formObj[i].name + "=" + formObj[i].value + "&";
		}
		else if ("radio" == formObj[i].type && formObj[i].checked)
		{
			u += formObj[i].name + "=" + formObj[i].value + "&";
		}
	}
	return u.substring(0, u.length-1);
}
function getCheckedRadio(formObj, radioName)
{
	var len = formObj.elements.length;
	var checkedValue = "undefined";
	for (var i=0;i<len;i++)
	{
		//console.log(formObj[i].type + "|" + formObj[i].name + "|" + formObj[i].value);
		if (formObj[i].disabled || formObj[i].type != "radio" || formObj[i].name != radioName)
		{
			continue;
		}
		if (formObj[i].checked)
		{
			checkedValue = formObj[i].value;
			break;
		}
	}
	return checkedValue;
}

var debug = true;

function log(msg)
{
	if (typeof(console) != "undefined" && debug)
	{
		console.log(msg);
	}
}

function getKeycode(e)
{
	var keynum;
	var keychar;
	var numcheck;

	if(window.event) // IE
	{
  		keynum = e.keyCode;
	}
	else if(e.which) // Netscape/Firefox/Opera
	{
  		keynum = e.which;
	}
	
	return keynum;
}

var Base64 = {

		// private property
		_keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",

		// public method for encoding
		encode : 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;
		},

		// 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;
		}

		}