javascript:
function utf8_encode ( str_data ) {
// Encodes an ISO-8859-1 string to UTF-8
//
// + original by: Webtoolkit.info (http://www.webtoolkit.info/)
str_data = str_data.replace(/\r\n/g,"\n");
var utftext = "";
for (var n = 0; n < str_data.length; n++) {
var c = str_data.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;
}
//Примеры:
alert ( utf8_encode('Kevin van Zonneveld') );