Trello Card JSON to JIRA Markdown

Trello2Jira.js

function buildJiraMarkdown(card) {
    var jira =
        "{panel}\n"+
        "h3. [" + card.name + "|" + card.shortUrl + "]\n" +
        card.desc + "\n\n" +
        "*Labels:* ";

    for (var i = 0; i < card.labels.length; ++i) {
        var label = card.labels[i];
        var c = label.color;

        if (label.color == "yellow") {
            c = "#aaaa00";
        }

        jira += (i === 0 ? "" : ", ") + "{color:" + c + "}" + label.name + "{color}";
    }

    jira += "\n";

    if (card.due) {
        jira += "*Due:* " + card.due.substr(0, card.due.indexOf("T")) + "\n";
    }

    for (i = 0; i < card.checklists.length; ++i) {
        var list = card.checklists[i];
        var complete = 0;
        var text = "";

        for (var j = 0; j < list.checkItems.length; ++j) {
            var item = list.checkItems[j];
            text += "- " + (item.state == "complete" ? "(/)" : "(x)") + " " + item.name + "\n";
            complete += (item.state == "complete" ? 1 : 0);
        }

        jira += "\n*" + list.name + "* (" + Math.round(complete / list.checkItems.length * 100) + "% complete)\n";
        jira += text;
    }

    return jira+"{panel}";
}

////////////////////////

//Exported JSON data
var trelloCard = 
    {};

alert(buildJiraMarkdown(trelloCard));

Available at JsFiddle: http://jsfiddle.net/zachkinstner/6AUE6

Various to-do items: include comments, activities, attachments, etc.

Also, update the script to load JSON data directly via Trello URL.