my first extensive function/ I need to find a way to refactor...and encapsulate

eloquent.email.content

var mailArchive = retrieveMails();
var livingCats = {"Spot": true};

for (var mail = 0; mail < mailArchive.length; mail++)
	var paragraphs = mailArchive[mail].split("\n"); //split the paragraphs
	for (var paragraph = 0; paragraph < paragraph.length; paragraph++){
		if (startsWith(paragraph, "born")){
			var names = catNames(paragraphs[paragraph])
			for (var name = 0; name < names.length; names++)
				livingCats[names[name]] = true;
		}
		else if(startsWith(paragraph,"died")){
			var names = catNames(paragraphs[paragraph])
			for (var name = 0; name < names.length; names++)
				delete livingCats[Names[name]];
		}
}