javascript的万能查询器根据网上一些朋友的代码个性后得到.

<!--
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功能：JavaScript实现自定义SQL语句生成
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作者：郭拉
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2007-2-7
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e-mail:guo_la@163.com
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-->
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<title>代理商收入明细表</title>
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</head>
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<body onLoad=javascript:addRow()>
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<P>
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<SCRIPT>
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function addRow()
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{
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myNewRow = document.all.myTable.insertRow();
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var lenRow = document.all.myTable.rows.length;
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if(lenRow > 1)
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{
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var point = myNewRow.rowIndex;
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var lenCol = document.all.myTable.rows(0).cells.length;
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var sa="sa"+lenRow;
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var sb="sb"+lenRow;
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var sc="sc"+lenRow;
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var sd="sd"+lenRow;
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for (i=0; i < lenCol; i++)
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{
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if(i == 0){
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document.all.myTable.rows(point).insertCell();
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////document.all.myTable.rows(point).cells(i).innerHTML= "<div align=center><select name='select'><option value=''></><option value='name'>名称  </><option value='sex'>性别</><option value='add'>地址</></select></div>";
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document.all.myTable.rows(point).cells(i).innerHTML= "<div align=center><select name='select' id="+sa+"><option value='地区名称'>地区名称 </><option value='客户名称'>客户名称 </><option value='客户证件类型'>客户证件类型 </><option value='客户证件号'>客户证件号 </><option value='客户三类标志'>客户三类标志 </></select></div>";
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}
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else if (i == 1) {
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document.all.myTable.rows(point).insertCell();
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document.all.myTable.rows(point).cells(i).innerHTML = "<div align=center><select name='select' id="+sb+"><option value='>'>></><option value='<'><</><option value='='>=</><option value='like'>包含</></select></div>";
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}
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else if (i == 2) {
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document.all.myTable.rows(point).insertCell();
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document.all.myTable.rows(point).cells(i).innerHTML = "<div align=center><input type='text' name='value' id="+sc+" class=bt2></div>";
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}
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else if (i == 3) {
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document.all.myTable.rows(point).insertCell();
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document.all.myTable.rows(point).cells(i).innerHTML = "<div align=center><select name='lj' id="+sd+" onChange='javascript: addRow()'><option ></><option value='and'>并且</><option value='or'>或者</></select></div>";
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}
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}
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}
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if(lenRow == 1)
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{
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for(i = 0; i < 4; i++)
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{
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document.all.myTable.rows(0).insertCell();
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document.all.myTable.rows(0).cells(i).innerHTML = " ";
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}
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}
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}
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function delRow()
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{
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var lenRow1 = document.all.myTable.rows.length;
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if (lenRow1 > 2) {
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document.all.myTable.deleteRow();
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}
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}
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</SCRIPT>
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<SCRIPT>
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function lookdate()
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{
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var Rows=document.all.myTable.rows.length;
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var sa="sa";
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var sb="sb";
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var sc="sc";
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var sd="sd";
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var s="";
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for(x=2;x<=Rows;x++)
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{
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for(i=0;i<document.all.item(sa+x).length;i++)
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{
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if(document.all.item(sa+x).options[i].selected)
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{
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s=s+ document.all.item(sa+x).options[i].value+" ";
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//alert(s);
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break;
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}
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}
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for(i=0;i<document.all.item(sb+x).length;i++)
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{
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if(document.all.item(sb+x).options[i].selected)
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{
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s=s+document.all.item(sb+x).options[i].value+" ";
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//alert(s);
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break;
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}
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}
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///s=s+"'"+document.all.item(sc+x).value +"' ";
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s=s+document.all.item(sc+x).value ;
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for(i=0;i<document.all.item(sd+x).length;i++)
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{
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if(document.all.item(sd+x).options[i].selected)
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{
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s=s+document.all.item(sd+x).options[i].value +" ";
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//alert(s);
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break;
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}
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}
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// alert(s);
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}
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alert(s);
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document.forms[0].elements[3].value=s;
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//document.forms[0].submit(); 这行为点击自动提交。
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}
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</SCRIPT></P><P>
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<BR/>
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<br/>
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<center>
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　请在下面选择查询条件
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</center> </P>
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<table width="90%" border=1 align="center" cellpadding="0" cellspacing="0" bordercolorlight="#CCCCCC" bordercolordark="#FFFFFF" id=myTable name=myTable>
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<tr bgcolor="#DBDBDB">
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<td><div align="center">字段名</div></td>
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<td><div align="center">比较符</div></td>
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<td><div align="center">查询值</div></td>
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<td><div align="center">关连符</div></td>
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</tr>
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</table>
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<p align ="center"><a href="javascript:delRow()">删除条件</a>　　
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<a href="javascript:lookdate()">查询</a></p>
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<FORM action="display.jsp" method="get" name="sql" >
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<table width="100%" border="1">
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<tr>
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<td width="85%">
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<INPUT type="hidden" name="sqltext" value="">
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SELECT
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<INPUT name="sqltext1" type="text" value=" *" size="32">
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From
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<INPUT name="tablename" type="text" id="sqltext2" size="16" value="all200612">
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Where
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<INPUT name="sqltext3" type="text" id="sqltext3" value=" rownum<100" size="32">
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<INPUT type="Submit" name="button1" value="提交" />
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</td>
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</tr>
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</table>
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</FORM>
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<p>
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<center>
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选择完成后请点击查询
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</center>
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</p>
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</body>
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</html>
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