function utf8_decode(str_data){
		// http://kevin.vanzonneveld.net
		// +   original by: Webtoolkit.info (http://www.webtoolkit.info/)
		// +	  input by: Aman Gupta
		// +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
		// *	 example 1: utf8_decode('Kevin van Zonneveld');
		// *	 returns 1: 'Kevin van Zonneveld'
		
		var tmp_arr = [], i = ac = c = c1 = c2 = 0;
		
		while (i < str_data.length) {
			c = str_data.charCodeAt(i);
			if (c < 128) {
				tmp_arr[ac++] = String.fromCharCode(c);
				i++;
			}
			else 
				if ((c > 191) && (c < 224)) {
					c2 = str_data.charCodeAt(i + 1);
					tmp_arr[ac++] = String.fromCharCode(((c & 31) << 6) | (c2 & 63));
					i += 2;
				}
				else {
					c2 = str_data.charCodeAt(i + 1);
					c3 = str_data.charCodeAt(i + 2);
					tmp_arr[ac++] = String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
					i += 3;
				}
		}
		
		return tmp_arr.join('');
}