How to traps change on facebook page?

[sarwasunda]

Sorry for my English. Can you help me please! I'm very newbie on coding. I want this code loads on every changes (status, tab,feed,etc) and can replace class element on my facebook pages

var words={"Masukkan Kembali":"Asupkeun deui","yang":"nu","":""};
//////////////////////////
// prepareRegex by JoeSimmons
//////////////////////////
String.prototype.prepareRegex = function() {
return this.replace(/([\[\]\^\&\$\.\(\)\?\/\\\+\{\}\|])/g, "\\$1");
};

function isOkTag(tag) {
return (",pre,blockquote,code,input,button,textarea".indexOf(","+tag) == -1);
}

var regexs=new Array(),
	replacements=new Array();
for(var word in words) {
if(word != "") {
regexs.push(new RegExp("\\b"+word.prepareRegex().replace(/\*/g,'[^ ]*')+"\\b", 'gi'));
replacements.push(words[word]);
}
}

var texts = document.evaluate(".//text()[normalize-space(.)!='']",document.body,null,6,null), text="";
for(var i=0,l=texts.snapshotLength; (this_text=texts.snapshotItem(i)); i++) {
	if(isOkTag(this_text.parentNode.tagName.toLowerCase()) && (text=this_text.textContent)) {
	for(var x=0,l=regexs.length; x<l; x++) {
	text = text.replace(regexs[x], replacements[x]);
	this_text.textContent = text;
	}
	}
}

[RamananKalirajan]

Add the function call on body onmouseup and onkeyup. So that for each and every action you will get the script triggered.

Thanks and Regards
Ramanan Kalirajan