Frozen table header inside scrollable div

Question

I\'ve three divs. Header, central and footer. There is a table in central div (gridview) which is almost always longer than outer div. So I\'ve made this div scrollable vert

Answer 1

Here is a basic solution using javascript:

function position(table) {
    table.rows[0].style.position="absolute";
    table.rows[0].style.top="0px";
    table.style.marginTop = table.rows[0].clientHeight/1.2;
    var widths = Array();
    for(var i = 0; i < table.rows[0].cells.length; i++) {
        widths[i] = max(table.rows[0].cells[i].clientWidth, table.rows[1].cells[i].clientWidth);
    }
    for(var row = 0; row < table.rows.length; row++) {
        for(var col = 0; col < widths.length; col ++) {
            table.rows[row].cells[col].style.width = widths[col] + "px";
        }
    }
}

function max(num1, num2) { return (num1 > num2) ? num1 : num2; }