riq.js代码：

// JavaScript Document

function loadCalendar(field)

{

   var rtn = window.showModalDialog("../inc/calender.php","","dialogWidth:280px;dialogHeight:250px;status:no;help:no;scrolling=no;scrollbars=no");//法用来创建一个显示HTML内容的模态对话框

if(rtn!=null)

field.value=rtn;

   return;

}

modify_staf.php部分代码：

<td width="100" height="25" align="right" valign="middle">出生日期：</td>

    <td width="300" align="left" valign="middle"><input type="text" name="u_birth" size="15" id="u_birth" value="<?php echo $t_rows[5]; ?>"/><input type="button" onClick="loadCalendar(mod_staf.u_birth)"></td>

calender.php代码：

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />

<script language=javascript>

<!--

    var monthNames = new Array ( "", "1","2","3","4","5","6","7", "8", "9", "10", "11", "12" );

    var endDay = new Array ( 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 );

    var dayNow = 0;

    var monthNow = 0;

    var yearNow = 0;

    function load ( form ) {

     set_month_year_now ();

        var found = false;

        for ( var month=0; month<form.monthList.length; month++ )

            if ( form.monthList[month].text == monthNames[monthNow] ) {

                form.monthList[month].selected = true;

                found = true;

            }

        if ( !found) {

            error ();

            return;

        }

        var found = false;

        for ( var year=0; year<form.yearList.length; year++ )

             if ( form.yearList[year].text == yearNow ) {

                form.yearList[year].selected = true;

                found = true;

             }

        if ( !found) {

            error ();

            return;

        }

        display_month ( form );

    }

    function preceding_month ( form ) {

        var month_selected = form.monthList.selectedIndex;

        var year_selected = form.yearList.selectedIndex;

        if ( !month_selected && !year_selected )  {

            error ();

            return;

        }

        if ( month_selected > 0 )

            month_selected --;

        else {

            month_selected = 11;

            year_selected --;

        }

        form.monthList[month_selected].selected = true;

        form.yearList[year_selected].selected = true;

        display_month ( form );

    }

......