function Disable_Select(PageName) {
    var IsNull = "N";
    var i = 1;
    while (IsNull == "N") {
        var tmpID = PageName + "Span_" + i;
        if (document.getElementById(tmpID) == null) {
            IsNull = "Y"
            break;
        }
        else {
            document.getElementById(tmpID).style.display = 'none';
        }
        i++;
    }
}
function SearchColumnChange(PageName) {
    var objddlSearch = document.getElementById(PageName + "ddlSearch");
    if (objddlSearch.options.length > 0) {
        for (i = 1; i < objddlSearch.options.length; i++) {
            if (objddlSearch.value == i) document.getElementById(PageName + "Span_" + i).style.display = '';
            else document.getElementById(PageName + "Span_" + i).style.display = 'none';
        }
    }
}