//
//	Librairie by The Rubik's Man
//		 © 2005-2006
//
/**
  *		Methodes :
  *					--  encode()
  *					--  decode()
  *
  *		Exemple d'utilisation :
  *					var ChaineCodee = UTF8_tool.encode("Chaine a coder");  ||  var ChaineDecodee = UTF8_tool.decode("Chaine a decoder")
  */
var UTF8_tool = function (){}
	
	/**
	  *		Fonction permettant de coder une chaine de caracteres en codage UTF8
	  *		@ param string => la chaine a encoder
	  *		@ return => la chaine de caracteres en format UTF8
	  */
	UTF8_tool.encode = function (string) {
		var 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;
	};
	
	/**
	  *		Fonction permettant de decoder une chaine de caracteres  UTF8 vers un codage ANSI
	  *		@ param string => la chaine a decoder
	  *		@ return => la chaine de caracteres en format ANSI
	  */
	UTF8_tool.decode = function (string) {
		utftext = string;
		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;
	};
//
//	Librairie by The Rubik's Man
//		    © 2005-2006
//