//Reserved characters
//&,:;=?+/@
//does not encode...
//+/@
//does not pass...
//+

//Unsafe characters
//<>#%{}|\\^~[]`
//Back Slash need to be doubled in a string.

var Url = {
	encode : function(string){
		return escape(this._utf8_encode(string));
	},
	decode : function(string){
		return this._utf8_decode(unescape(string));
	},
	_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;
	},
	_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;
	}
}

function replaceCharacters(valueToCheck){
    valueToCheck = Url.encode(valueToCheck);
    
    while(valueToCheck.search(/[\+\/\@]/) != -1){
        valueToCheck = valueToCheck.replace(/[\+]/, "%2B")
        valueToCheck = valueToCheck.replace(/[\/]/, "%2F")
        valueToCheck = valueToCheck.replace(/[\@]/, "%40")
    }
    
    return valueToCheck;
}