jQuery脚本在chrome上正常工作，但不是

我的脚本在firefox和chrome上似乎运行良好，但在ie8上似乎失败。逐步地，我在脚本中的所有代码和警报功能开始工作之前就放置了警报功能。但是document.ready函数几乎永远不会执行。这是一个ie8问题吗？如果是这样，那么我该如何解决？请帮忙。

代码：

<script src="/_layouts/topsoe.common/js/jquery-1.10.2.min.js?rev=YoBy5yEtsejNrLIrIXUs2g%3D%3D" type="text/javascript"></script>
<script>
$(document).ready(function () {
    // hide the last two columns and their headings
    $("#WebPartWPQ3 .ms-vh2:eq(5)").css("display", "none"); // for the last two column headings;
    $("#WebPartWPQ3 .ms-vh2:eq(4)").css("display", "none");
    // for each row in the application page
    var idcount = 0;
    $("#WebPartWPQ3 .ms-itmhover").each(function () {
        var proj_ID='project' + idcount; // assigning each row an id so that they can be accesed individually
        $(this).attr('id', 'project' + idcount); 
        idcount = idcount + 1;
        $("#"+proj_ID+"  .ms-vb2:eq(5)").css("display", "none");
        $("#"+proj_ID+" .ms-vb2:eq(4)").css("display", "none");
        // extracting the project status and the precentage of completion. these will be used to assign color codes
        var status = $("#"+proj_ID+" .ms-vb2:eq(3)").html();
        var percentage = $("#" + proj_ID + " .ms-vb2:eq(5) div").html();
        var suffix = percentage.match(/\d+/);
        console.log(proj_ID + "\n" + status + "\n" + percentage); // remove after testing
        // formatting the status cell accroding to the status and percentage;
        var bg_color; var status_formatted;
        if (status == "In Progress") {
            $("#" + proj_ID + " .ms-vb2:eq(3)").html("<div style='position:relative; width:" + suffix + "%;background:#44AFF6; z-index:0; height:60px; margin-bottom:-50px;'></div><div style='position:relative; z-index:1; text-align:center; margin-left:2px;' >In Progress</br>" + percentage + "</div>");
        }
        if (status == "Completed") {
            $("#" + proj_ID + " .ms-vb2:eq(3)").html("<div style='position:relative; width:100% ;background:#57C759; z-index:0; padding:20px 2px; coor:black; height:23px; text-align:center'>completed</div>");
        }
        if (status == "Halted") {
            $("#" + proj_ID + " .ms-vb2:eq(3)").html("<div style='position:relative; width:" + suffix + "%;background:#FF0033; z-index:0; height:60px; margin-bottom:-50px;'></div><div style='position:relative; z-index:1; text-align:center; margin-left:2px;' >Halted </br> " + percentage + "</div>");
        }
        if (status == "User Acceptance Testing") {
            $("#" + proj_ID + " .ms-vb2:eq(3)").html("<div style='position:relative; width:100% ;background:#FFFF66; z-index:0; padding:20px 2px; coor:black; height:23px; text-align:center;'>UAT</div>");
        }
    });
});
</script>