Regular Expressions with JavaScript

    var txt = "asdfasdf\nasdfasdf\nasdfasdf\n<!-- header:4:11:29 p.m. -->\n<!-- header:4:10:02 p.m. -->\n<!-- header:4:6:11 p.m. -->\nasdfasdf\nasdf";
    var res = txt.match(/<!-- header:([1-6]):(.*?) -->/mg);
    for (i=0; i<res.length; i++ ) {
        console.log('res ' + i + ' = ' + res[i]);
        var headers   = [];
        var regex = /<!-- header:([1-6]):(.*?) -->/m;
        if ( headers = regex.exec(res[i]) ) {
            for (j=0; j<headers.length; j+=3 ) {
                console.log('header 0 = ' + headers[j]);
                console.log('header 1 = ' + headers[j+1]);
                console.log('header 2 = ' + headers[j+2]);
            }
        }
    }