zentao/module/my/js/index.js

$(function()
{
    /* Set the heights of every block to keep them same height. */
    projectBoxHeight = $('#projectbox').height();
    productBoxHeight = $('#productbox').height();
    if(projectBoxHeight < 180) $('#projectbox').css('height', 180);
    if(productBoxHeight < 180) $('#productbox').css('height', 180);

    $('.panel-block').scroll(function()
    {
        var hasFixed  = $(this).find('.fixedHead').size() > 0;
        if(!hasFixed)
        {
            $(this).css('position', 'relative');
            var hasHeading = $(this).find('.panel-heading').size() > 0;
            var fixed = hasHeading ? $(this).find('.panel-heading').clone() : "<table class='fixedHead' style='position:absolute;top:0px;z-index:10'><thead>" + $(this).find('table thead').html() + '</thead></table>';
            $(this).prepend(fixed);
            if(hasHeading)
            {
                var firstHeading = $(this).find('.panel-heading:first');
                var lastHeading  = $(this).find('.panel-heading:last');
                firstHeading.addClass('fixedHead');
                firstHeading.css({'position':'absolute','top':'0px'});
                firstHeading.width(lastHeading.width());
                firstHeading.height(lastHeading.height());
            }
            else
            {
                var $fixTable = $(this).find('table.fixedHead');
                $fixTable.addClass($(this).find('table:last').attr('class'));
                var $dataTable = $(this).find('table:last thead th');
                $fixTable.find('thead th').each(function(i){$fixTable.find('thead th').eq(i).width($dataTable.eq(i).width());})
            }
        }
        $(this).find('.fixedHead').css('top',$(this).scrollTop());
    });
});