gistfile1.txt

function makeBoard(host, subx, suby) {

    var i,j,
        sz = subx * suby;

    for (j=0; j<sz; ++j) {

        var div = document.createElement('div');

        for (i=0; i<sz; ++i) {
            var inp = document.createElement('input');
            inp.id = 'input_' + x.toString() + '_' + y.toString();

            var cellClass;
            if ((i % subx) === 0) { cellClass = 'leftHeavy'; }
            if ((j % suby) === 0) { cellClass = 'topHeavy';  }
            inp.className = cellClass;

            div.appendChild(inp);
        }

        host.appendChild(div);
    }

}