gistfile1.js

var data=null;

jetpack.future.import("selection");
jetpack.selection.onSelection(
    function(){ 
        data = 'http://tw.dictionary.yahoo.com/search?ei=UTF-8&p='+jetpack.selection.text;
	$.ajax({
    		url: data,
		dataType: 'html',
    		success: function(response) {
				var matches = response.match(/<div class\=pexplain>([^>]+)<\/div>/g);
				if (!matches) { jetpack.notifications.show('no matches!'); return; }
				var result = ''
				for (var i = 0; i < matches.length; i++) {
					result += (matches[i].replace(/<div class\=pexplain>/, '').replace(/<\/div>/,'')) + "\n";
				}
				jetpack.notifications.show(result);
			},
		error: function(xhr,stat,err) { console.log(stat); } }
		);	
    }
);