页面加载效果
<div id="divWaiting"
style="display: none; z-index: 1100; left: 25%; right: 25%; position: absolute;
text-align: center; width: 50%; height: 50px; border-right: #009900 1px solid;
border-top: #009900 1px solid; border-left: #009900 1px solid; border-bottom: #009900 1px solid;
background-color: #f9fff6; left: expression((this.offsetParent.clientWidth/2)-(this.clientWidth/2)+this.offsetParent.scrollLeft);
top: expression((this.offsetParent.clientHeight/2)-(this.clientHeight/2)+this.offsetParent.scrollTop);">
<br>
数据统计中，请等待...</div>
<div id="divDisable"
style="display: none;width:expression(document.body.offsetWidth);height:expression(document.body.offsetHeight); z-index: 1000; position: absolute;left: 0px; top: 0px;filter:alpha(opacity=50); background-color:White"></div>
将上面内容加入html body 中 ，在按钮提交查询（即form提交之前）时，display 设置为显示 ，就可以看到数据统计，请等待.... 的加载下过了
