function emcx_encode(source_string) {

    var encoded_string = "";
    var char_list = source_string.split('');
  
    for(i=0;i<char_list.length;i++) {
		
		if(encoded_string != "") {
			encoded_string += '_';
		}
		
		encoded_string += char_list[i].charCodeAt(0)+666+i;
    }
	
	return encoded_string;
}

function emcx_decode(source_string) {

    var decoded_string = "";
    var code_list = source_string.split('_');
  
    for(i=0;i<code_list.length;i++) {
		
		decoded_string += String.fromCharCode(code_list[i]-666-i);
    }
	
	return decoded_string;
}

function emcx_get(source_string) {

    document.write(emcx_decode(source_string));
}

function emcx_prepare(source_string) {

	alert(source_string+"="+emcx_encode(source_string));
    document.write(source_string);
}