<script language="JavaScript">   /**//**   *本日历选择控件由tiannet根据前人经验完善而得。大部分代码来自meizz的日历控件。   *tiannet添加了时间选择功能、select,object标签隐藏功能，还有其它小功能。   *使用方法：   * (1)只选择日期 <input type="text" name="date" readOnly onClick="setDay(this);">   * (2)选择日期和小时 <input type="text" name="dateh" readOnly onClick="setDayH(this);">   * (3)选择日期和小时及分钟 <input type="text" name="datehm" readOnly onClick="setDayHM(this);">   *设置参数的方法   * (1)设置日期分隔符 setDateSplit(strSplit);默认为"-"   * (2)设置日期与时间之间的分隔符 setDateTimeSplit(strSplit);默认为" "   * (3)设置时间分隔符 setTimeSplit(strSplit);默认为":"   * (4)设置(1),(2),(3)中的分隔符 setSplit(strDateSplit,strDateTimeSplit,strTimeSplit);   * (5)设置开始和结束年份 setYearPeriod(intDateBeg,intDateEnd)   *说明：   * 默认返回的日期时间格式如同：2005-02-02 08:08   */   //------------------ 样式定义 ---------------------------//   //功能按钮同样样式   var s_tiannet_turn_base = "height:16px;font-size:9pt;color:white;border:0 solid #CCCCCC;cursor:hand;background-color:#2650A6;";   //翻年、月等的按钮   var s_tiannet_turn = "width:28px;" + s_tiannet_turn_base;   //关闭、清空等按钮样式   var s_tiannet_turn2 = "width:22px;" + s_tiannet_turn_base;   //年选择下拉框   var s_tiannet_select = "width:64px;display:none;";   //月、时、分选择下拉框   var s_tiannet_select2 = "width:46px;display:none;";   //日期选择控件体的样式   var s_tiannet_body = "width:150;background-color:#2650A6;display:none;z-index:9998;position:absolute;" +   "border-left:1 solid #CCCCCC;border-top:1 solid #CCCCCC;border-right:1 solid #999999;border-bottom:1 solid #999999;";   //显示日的td的样式   var s_tiannet_day = "width:21px;height:20px;background-color:#D8F0FC;font-size:10pt;";   //字体样式   var s_tiannet_font = "color:#FFCC00;font-size:9pt;cursor:hand;";   //链接的样式   var s_tiannet_link = "text-decoration:none;font-size:9pt;color:#2650A6;";   //横线   var s_tiannet_line = "border-bottom:1 solid #6699CC";   //------------------ 变量定义 ---------------------------//   var tiannetYearSt = 1950;//可选择的开始年份   var tiannetYearEnd = 2010;//可选择的结束年份   var tiannetDateNow = new Date();   var tiannetYear = tiannetDateNow.getFullYear(); //定义年的变量的初始值   var tiannetMonth = tiannetDateNow.getMonth()+1; //定义月的变量的初始值   var tiannetDay = tiannetDateNow.getDate();   var tiannetHour = 8;//tiannetDateNow.getHours();   var tiannetMinute = 0;//tiannetDateNow.getMinutes();   var tiannetArrDay=new Array(42); //定义写日期的数组   var tiannetDateSplit = "-"; //日期的分隔符号   var tiannetDateTimeSplit = " "; //日期与时间之间的分隔符   var tiannetTimeSplit = ":"; //时间的分隔符号   var tiannetOutObject; //接收日期时间的对象   var arrTiannetHide = new Array();//被强制隐藏的标签   var m_bolShowHour = false;//是否显示小时   var m_bolShowMinute = false;//是否显示分钟     var m_aMonHead = new Array(12); //定义阳历中每个月的最大天数   m_aMonHead[0] = 31; m_aMonHead[1] = 28; m_aMonHead[2] = 31; m_aMonHead[3] = 30; m_aMonHead[4] = 31; m_aMonHead[5] = 30;   m_aMonHead[6] = 31; m_aMonHead[7] = 31; m_aMonHead[8] = 30; m_aMonHead[9] = 31; m_aMonHead[10] = 30; m_aMonHead[11] = 31;   // ---------------------- 用户可调用的函数 -----------------------------//   //用户主调函数－只选择日期   function setDay(obj){   tiannetOutObject = obj;   //如果标签中有值，则将日期初始化为当前值   var strValue = tiannetTrim(tiannetOutObject.value);   if( strValue != "" ){   tiannetInitDate(strValue);   }   tiannetPopCalendar();   }   //用户主调函数－选择日期和小时   function setDayH(obj){   tiannetOutObject = obj;   m_bolShowHour = true;   //如果标签中有值，则将日期和小时初始化为当前值   var strValue = tiannetTrim(tiannetOutObject.value);   if( strValue != "" ){   tiannetInitDate(strValue.substring(0,10));   var hour = strValue.substring(11,13);   if( hour < 10 ) tiannetHour = hour.substring(1,2);   }   tiannetPopCalendar();   }   //用户主调函数－选择日期和小时及分钟   function setDayHM(obj){   tiannetOutObject = obj;   m_bolShowHour = true;   m_bolShowMinute = true;   //如果标签中有值，则将日期和小时及分钟初始化为当前值   var strValue = tiannetTrim(tiannetOutObject.value);   if( strValue != "" ){   tiannetInitDate(strValue.substring(0,10));   var time = strValue.substring(11,16);   var arr = time.split(tiannetTimeSplit);   tiannetHour = arr[0];   tiannetMinute = arr[1];   if( tiannetHour < 10 ) tiannetHour = tiannetHour.substring(1,2);   if( tiannetMinute < 10 ) tiannetMinute = tiannetMinute.substring(1,2);   }   tiannetPopCalendar();   }   //设置开始日期和结束日期   function setYearPeriod(intDateBeg,intDateEnd){   tiannetYearSt = intDateBeg;   tiannetYearEnd = intDateEnd;   }   //设置日期分隔符。默认为"-"   function setDateSplit(strDateSplit){   tiannetDateSplit = strDateSplit;   }   //设置日期与时间之间的分隔符。默认为" "   function setDateTimeSplit(strDateTimeSplit){   tiannetDateTimeSplit = strDateTimeSplit;   }   //设置时间分隔符。默认为":"   function setTimeSplit(strTimeSplit){   tiannetTimeSplit = strTimeSplit;   }   //设置分隔符   function setSplit(strDateSplit,strDateTimeSplit,strTimeSplit){   tiannetDateSplit(strDateSplit);   tiannetDateTimeSplit(strDateTimeSplit);   tiannetTimeSplit(strTimeSplit);   }   //设置默认的日期。格式为：YYYY-MM-DD   function setDefaultDate(strDate){   tiannetYear = strDate.substring(0,4);   tiannetMonth = strDate.substring(5,7);   tiannetDay = strDate.substring(8,10);   }   //设置默认的时间。格式为：HH24:MI   function setDefaultTime(strTime){   tiannetHour = strTime.substring(0,2);   tiannetMinute = strTime.substring(3,5);   }   // ---------------------- end 用户可调用的函数 -----------------------------//   //------------------ begin 页面显示部分 ---------------------------//   var weekName = new Array("日","一","二","三","四","五","六");   document.write('<div id="divTiannetDate" style="'+s_tiannet_body+'" style="本日历选择控件由tiannet根据前人经验完善而成！">');   document.write('<div align="center" id="divTiannetDateText" Author="tiannet" style="padding-top:2px;">');   document.write('<span id="tiannetYearHead" Author="tiannet" style="'+s_tiannet_font+'" '+   'onclick="spanYearCEvent();"> 年</span>');   document.write('<select id="selTianYear" style="'+s_tiannet_select+'" Author="tiannet" '+   ' onChange="tiannetYear=this.value;tiannetSetDay(tiannetYear,tiannetMonth);document.all.tiannetYearHead.style.display=\'\';'+   'this.style.display=\'none\';">');   for(var i=tiannetYearSt;i <= tiannetYearEnd;i ++){   document.writeln('<option value="' + i + '">' + i + '年</option>');   }   document.write('</select>');   document.write('<span id="tiannetMonthHead" Author="tiannet" style="'+s_tiannet_font+'" '+   'onclick="spanMonthCEvent();"> 月</span>');   document.write('<select id="selTianMonth" style="'+s_tiannet_select2+'" Author="tiannet" '+   'onChange="tiannetMonth=this.value;tiannetSetDay(tiannetYear,tiannetMonth);document.all.tiannetMonthHead.style.display=\'\';'+   'this.style.display=\'none\';">');   for(var i=1;i <= 12;i ++){   document.writeln('<option value="' + i + '">' + i + '月</option>');   }   document.write('</select>');   //document.write('</div>');   //document.write('<div align="center" id="divTiannetTimeText" Author="tiannet">');   document.write('<span id="tiannetHourHead" Author="tiannet" style="'+s_tiannet_font+'display:none;" '+   'onclick="spanHourCEvent();"> 时</span>');   document.write('<select id="selTianHour" style="'+s_tiannet_select2+'display:none;" Author="tiannet" '+   ' onChange="tiannetHour=this.value;tiannetWriteHead();document.all.tiannetHourHead.style.display=\'\';' +   'this.style.display=\'none\';">');   for(var i=0;i <= 23;i ++){   document.writeln('<option value="' + i + '">' + i + '时</option>');   }   document.write('</select>');   document.write('<span id="tiannetMinuteHead" Author="tiannet" style="'+s_tiannet_font+'display:none;" '+   'onclick="spanMinuteCEvent();"> 分</span>');   document.write('<select id="selTianMinute" style="'+s_tiannet_select2+'display:none;" Author="tiannet" '+   ' onChange="tiannetMinute=this.value;tiannetWriteHead();document.all.tiannetMinuteHead.style.display=\'\';'+   'this.style.display=\'none\';">');   for(var i=0;i <= 59;i ++){   document.writeln('<option value="' + i + '">' + i + '分</option>');   }   document.write('</select>');   document.write('</div>');   //输出一条横线   document.write('<div style="'+s_tiannet_line+'"></div>');   document.write('<div align="center" id="divTiannetTurn" style="border:0;" Author="tiannet">');   document.write('<input type="button" style="'+s_tiannet_turn+'" value="年↑" title="上一年" onClick="tiannetPrevYear();">');   document.write('<input type="button" style="'+s_tiannet_turn+'" value="年↓" title="下一年" onClick="tiannetNextYear();"> ');   document.write('<input type="button" style="'+s_tiannet_turn+'" value="月↑" title="上一月" onClick="tiannetPrevMonth();">');   document.write('<input type="button" style="'+s_tiannet_turn+'" value="月↓" title="下一月" onClick="tiannetNextMonth();">');   document.write('</div>');   //输出一条横线   document.write('<div style="'+s_tiannet_line+'"></div>');   document.write('<table border=0 cellspacing=0 cellpadding=0 bgcolor=white onselectstart="return false">');   document.write(' <tr style="background-color:#2650A6;font-size:10pt;color:white;height:22px;" Author="tiannet">');   for(var i =0;i < weekName.length;i ++){   //输出星期   document.write('<td width="21" align="center" Author="tiannet">' + weekName[i] + '</td>');   }   document.write(' </tr>');   document.write('</table>');   //输出天的选择   document.write('<table border=0 cellspacing=1 cellpadding=0 bgcolor=white onselectstart="return false">');   var n = 0;   for (var i=0;i<5;i++) {   document.write (' <tr align=center id="trTiannetDay' + i + '" >');   for (var j=0;j<7;j++){   document.write('<td align="center" id="tdTiannetDay' + n + '" '+   'onClick="tiannetDay=this.innerText;tiannetSetValue(true);" '   +' style="' + s_tiannet_day + '"> </td>');   n ++;   }   document.write (' </tr>');   }   document.write (' <tr align=center id="trTiannetDay5" >');   document.write('<td align="center" id="tdTiannetDay35" onClick="tiannetDay=this.innerText;tiannetSetValue(true);" '   +' style="' + s_tiannet_day + '"> </td>');   document.write('<td align="center" id="tdTiannetDay36" onClick="tiannetDay=this.innerText;tiannetSetValue(true);" '   +' style="' + s_tiannet_day + '"> </td>');   document.write('<td align="right" colspan="5"><a href="javascript:tiannetClear();" style="' + s_tiannet_link + '">清空</a>'+   ' <a href="javascript:tiannetHideControl();" style="' + s_tiannet_link + '">关闭</a>' +   ' <a href="javascript:tiannetSetValue(true);" style="' + s_tiannet_link + '">确定</a> ' +   '</td>');   document.write (' </tr>');   document.write('</table>');   document.write('</div>');   //------------------ end 页面显示部分 ---------------------------//   //------------------ 显示日期时间的span标签响应事件 ---------------------------//   //单击年份span标签响应   function spanYearCEvent(){   hideElementsById(new Array("selTianYear","tiannetMonthHead"),false);   if(m_bolShowHour) hideElementsById(new Array("tiannetHourHead"),false);   if(m_bolShowMinute) hideElementsById(new Array("tiannetMinuteHead"),false);   hideElementsById(new Array("tiannetYearHead","selTianMonth","selTianHour","selTianMinute"),true);   }   //单击月份span标签响应   function spanMonthCEvent(){   hideElementsById(new Array("selTianMonth","tiannetYearHead"),false);   if(m_bolShowHour) hideElementsById(new Array("tiannetHourHead"),false);   if(m_bolShowMinute) hideElementsById(new Array("tiannetMinuteHead"),false);   hideElementsById(new Array("tiannetMonthHead","selTianYear","selTianHour","selTianMinute"),true);   }   //单击小时span标签响应   function spanHourCEvent(){   hideElementsById(new Array("tiannetYearHead","tiannetMonthHead"),false);   if(m_bolShowHour) hideElementsById(new Array("selTianHour"),false);   if(m_bolShowMinute) hideElementsById(new Array("tiannetMinuteHead"),false);   hideElementsById(new Array("tiannetHourHead","selTianYear","selTianMonth","selTianMinute"),true);   }   //单击分钟span标签响应   function spanMinuteCEvent(){   hideElementsById(new Array("tiannetYearHead","tiannetMonthHead"),false);   if(m_bolShowHour) hideElementsById(new Array("tiannetHourHead"),false);   if(m_bolShowMinute) hideElementsById(new Array("selTianMinute"),false);   hideElementsById(new Array("tiannetMinuteHead","selTianYear","selTianMonth","selTianHour"),true);   }   //根据标签id隐藏或显示标签   function hideElementsById(arrId,bolHide){   var strDisplay = "";   if(bolHide) strDisplay = "none";   for(var i = 0;i < arrId.length;i ++){   var obj = document.getElementById(arrId[i]);   obj.style.display = strDisplay;   }   }   //------------------ end 显示日期时间的span标签响应事件 ---------------------------//   //判断某年是否为闰年   function isPinYear(year){   var bolRet = false;   if (0==year%4&&((year%100!=0)||(year%400==0))) {   bolRet = true;   }   return bolRet;   }   //得到一个月的天数，闰年为29天   function getMonthCount(year,month){   var c=m_aMonHead[month-1];   if((month==2)&&isPinYear(year)) c++;   return c;   }   //重新设置当前的日。主要是防止在翻年、翻月时，当前日大于当月的最大日   function setRealDayCount() {   if( tiannetDay > getMonthCount(tiannetYear,tiannetMonth) ) {   //如果当前的日大于当月的最大日，则取当月最大日   tiannetDay = getMonthCount(tiannetYear,tiannetMonth);   }   }   //在个位数前加零   function addZero(value){   if(value < 10 ){   value = "0" + value;   }   return value;   }   //取出空格   function tiannetTrim(str) {   return str.replace(/(^\s*)|(\s*$)/g,"");   }   //为select创建一个option   function createOption(objSelect,value,text){   var option = document.createElement("OPTION");   option.value = value;   option.text = text;   objSelect.options.add(option);   }   //往前翻 Year   function tiannetPrevYear() {   if(tiannetYear > 999 && tiannetYear <10000){tiannetYear--;}   else{alert("年份超出范围（1000-9999）！");}   tiannetSetDay(tiannetYear,tiannetMonth);   //如果年份小于允许的最小年份，则创建对应的option   if( tiannetYear < tiannetYearSt ) {   tiannetYearSt = tiannetYear;   createOption(document.all.selTianYear,tiannetYear,tiannetYear + "年");   }   checkSelect(document.all.selTianYear,tiannetYear);   tiannetWriteHead();   }   //往后翻 Year   function tiannetNextYear() {   if(tiannetYear > 999 && tiannetYear <10000){tiannetYear++;}   else{alert("年份超出范围（1000-9999）！");return;}   tiannetSetDay(tiannetYear,tiannetMonth);   //如果年份超过允许的最大年份，则创建对应的option   if( tiannetYear > tiannetYearEnd ) {   tiannetYearEnd = tiannetYear;   createOption(document.all.selTianYear,tiannetYear,tiannetYear + "年");   }   checkSelect(document.all.selTianYear,tiannetYear);   tiannetWriteHead();   }   //选择今天   function tiannetToday() {   tiannetYear = tiannetDateNow.getFullYear();   tiannetMonth = tiannetDateNow.getMonth()+1;   tiannetDay = tiannetDateNow.getDate();   tiannetSetValue(true);   //tiannetSetDay(tiannetYear,tiannetMonth);   //selectObject();   }   //往前翻月份   function tiannetPrevMonth() {   if(tiannetMonth>1){tiannetMonth--}else{tiannetYear--;tiannetMonth=12;}   tiannetSetDay(tiannetYear,tiannetMonth);   checkSelect(document.all.selTianMonth,tiannetMonth);   tiannetWriteHead();   }   //往后翻月份   function tiannetNextMonth() {   if(tiannetMonth==12){tiannetYear++;tiannetMonth=1}else{tiannetMonth++}   tiannetSetDay(tiannetYear,tiannetMonth);   checkSelect(document.all.selTianMonth,tiannetMonth);   tiannetWriteHead();   }   //向span标签中写入年、月、时、分等数据   function tiannetWriteHead(){   document.all.tiannetYearHead.innerText = tiannetYear + "年";   document.all.tiannetMonthHead.innerText = tiannetMonth + "月";   if( m_bolShowHour ) document.all.tiannetHourHead.innerText = " "+tiannetHour + "时";   if( m_bolShowMinute ) document.all.tiannetMinuteHead.innerText = tiannetMinute + "分";   tiannetSetValue(false);//给文本框赋值，但不隐藏本控件   }   //设置显示天   function tiannetSetDay(yy,mm) {     setRealDayCount();//设置当月真实的日   tiannetWriteHead();   var strDateFont1 = "", strDateFont2 = "" //处理日期显示的风格   for (var i = 0; i < 37; i++){tiannetArrDay[i]=""}; //将显示框的内容全部清空   var day1 = 1;   var firstday = new Date(yy,mm-1,1).getDay(); //某月第一天的星期几   for (var i = firstday; day1 < getMonthCount(yy,mm)+1; i++){   tiannetArrDay[i]=day1;day1++;   }   //如果用于显示日的最后一行的第一个单元格的值为空，则隐藏整行。   //if(tiannetArrDay[35] == ""){   // document.all.trTiannetDay5.style.display = "none";   //} else {   // document.all.trTiannetDay5.style.display = "";   //}   for (var i = 0; i < 37; i++){   var da = eval("document.all.tdTiannetDay"+i) //书写新的一个月的日期星期排列   if (tiannetArrDay[i]!="") {   //判断是否为周末，如果是周末，则改为红色字体   if(i % 7 == 0 || (i+1) % 7 == 0){   strDateFont1 = "<font color=#f0000>"   strDateFont2 = "</font>"   } else {   strDateFont1 = "";   strDateFont2 = ""   }   da.innerHTML = strDateFont1 + tiannetArrDay[i] + strDateFont2;   //如果是当前选择的天，则改变颜色   if(tiannetArrDay[i] == tiannetDay ) {   da.style.backgroundColor = "#CCCCCC";   } else {   da.style.backgroundColor = "#EFEFEF";   }   da.style.cursor="hand"   } else {   da.innerHTML="";da.style.backgroundColor="";da.style.cursor="default"   }   }//end for   tiannetSetValue(false);//给文本框赋值，但不隐藏本控件   }//end function tiannetSetDay   //根据option的值选中option   function checkSelect(objSelect,selectValue) {   var count = parseInt(objSelect.length);   if( selectValue < 10 && selectValue.toString().length == 2) {   selectValue = selectValue.substring(1,2);   }   for(var i = 0;i < count;i ++){   if(objSelect.options[i].value == selectValue){   objSelect.selectedIndex = i;   break;   }   }//for   }   //选中年、月、时、分等下拉框   function selectObject(){   //如果年份小于允许的最小年份，则创建对应的option   if( tiannetYear < tiannetYearSt ) {   for( var i = tiannetYear;i < tiannetYearSt;i ++ ){   createOption(document.all.selTianYear,i,i + "年");   }   tiannetYearSt = tiannetYear;   }   //如果年份超过允许的最大年份，则创建对应的option   if( tiannetYear > tiannetYearEnd ) {   for( var i = tiannetYearEnd+1;i <= tiannetYear;i ++ ){   createOption(document.all.selTianYear,i,i + "年");   }   tiannetYearEnd = tiannetYear;   }   checkSelect(document.all.selTianYear,tiannetYear);   checkSelect(document.all.selTianMonth,tiannetMonth);   if( m_bolShowHour ) checkSelect(document.all.selTianHour,tiannetHour);   if( m_bolShowMinute ) checkSelect(document.all.selTianMinute,tiannetMinute);   }   //给接受日期时间的控件赋值   //参数bolHideControl - 是否隐藏控件   function tiannetSetValue(bolHideControl){   var value = "";   if( !tiannetDay || tiannetDay == "" ){   tiannetOutObject.value = value;   return;   }   var mm = tiannetMonth;   var day = tiannetDay;   if( mm < 10 && mm.toString().length == 1) mm = "0" + mm;   if( day < 10 && day.toString().length == 1) day = "0" + day;   value = tiannetYear + tiannetDateSplit + mm + tiannetDateSplit + day;   if( m_bolShowHour ){   var hour = tiannetHour;   if( hour < 10 && hour.toString().length == 1 ) hour = "0" + hour;   value += tiannetDateTimeSplit + hour;   }   if( m_bolShowMinute ){   var minute = tiannetMinute;   if( minute < 10 && minute.toString().length == 1 ) minute = "0" + minute;   value += tiannetTimeSplit + minute;   }   tiannetOutObject.value = value;   //document.all.divTiannetDate.style.display = "none";   if( bolHideControl ) {   tiannetHideControl();   }   }   //是否显示时间   function showTime(){   if( !m_bolShowHour && m_bolShowMinute){   alert("如果要选择分钟，则必须可以选择小时！");   return;   }   hideElementsById(new Array("tiannetHourHead","selTianHour","tiannetMinuteHead","selTianMinute"),true);   if( m_bolShowHour ){   //显示小时   hideElementsById(new Array("tiannetHourHead"),false);   }   if( m_bolShowMinute ){   //显示分钟   hideElementsById(new Array("tiannetMinuteHead"),false);   }   }   //弹出显示日历选择控件，以让用户选择   function tiannetPopCalendar(){   //隐藏下拉框，显示相对应的head   hideElementsById(new Array("selTianYear","selTianMonth","selTianHour","selTianMinute"),true);   hideElementsById(new Array("tiannetYearHead","tiannetMonthHead","tiannetHourHead","tiannetMinuteHead"),false);   tiannetSetDay(tiannetYear,tiannetMonth);   tiannetWriteHead();   showTime();   var dads = document.all.divTiannetDate.style;   var iX, iY;     var h = document.all.divTiannetDate.offsetHeight;   var w = document.all.divTiannetDate.offsetWidth;   //计算left   if (window.event.x + h > document.body.offsetWidth - 10 )   iX = window.event.x - h - 5 ;   else   iX = window.event.x + 5;   if (iX <0)   iX=0;   //计算top   iY = window.event.y;   if (window.event.y + w > document.body.offsetHeight - 10 )   iY = document.body.scrollTop + document.body.offsetHeight - w - 5 ;   else   iY = document.body.scrollTop +window.event.y + 5;   if (iY <0)   iY=0;   dads.left = iX;   dads.top = iY;   tiannetShowControl();   selectObject();   }   //隐藏日历控件(同时显示被强制隐藏的标签)   function tiannetHideControl(){   document.all.divTiannetDate.style.display = "none";   tiannetShowObject();   arrTiannetHide = new Array();//将被隐藏的标签对象清空   }   //显示日历控件(同时隐藏会遮挡的标签)   function tiannetShowControl(){   document.all.divTiannetDate.style.display = "";   tiannetHideObject("SELECT");   tiannetHideObject("OBJECT");   }   //根据标签名称隐藏标签。如会遮住控件的select，object   function tiannetHideObject(strTagName) {     x = document.all.divTiannetDate.offsetLeft;   y = document.all.divTiannetDate.offsetTop;   h = document.all.divTiannetDate.offsetHeight;   w = document.all.divTiannetDate.offsetWidth;     for (var i = 0; i < document.all.tags(strTagName).length; i++)   {     var obj = document.all.tags(strTagName)[i];   if (! obj || ! obj.offsetParent)   continue;   // 获取元素对于BODY标记的相对坐标   var objLeft = obj.offsetLeft;   var objTop = obj.offsetTop;   var objHeight = obj.offsetHeight;   var objWidth = obj.offsetWidth;   var objParent = obj.offsetParent;     while (objParent.tagName.toUpperCase() != "BODY"){   objLeft += objParent.offsetLeft;   objTop += objParent.offsetTop;   objParent = objParent.offsetParent;   }   //alert("控件左端:" + x + "select左端" + (objLeft + objWidth) + "控件底部:" + (y+h) + "select高:" + objTop);     var bolHide = true;   if( obj.style.display == "none" || obj.style.visibility == "hidden" || obj.getAttribute("Author") == "tiannet" ){   //如果标签本身就是隐藏的，则不需要再隐藏。如果是控件中的下拉框，也不用隐藏。   bolHide = false;   }   if( ( (objLeft + objWidth) > x && (y + h + 20) > objTop && (objTop+objHeight) > y && objLeft < (x+w) ) && bolHide ){   //arrTiannetHide.push(obj);//记录被隐藏的标签对象   arrTiannetHide[arrTiannetHide.length] = obj;   obj.style.visibility = "hidden";   }       }   }   //显示被隐藏的标签   function tiannetShowObject(){   for(var i = 0;i < arrTiannetHide.length;i ++){   //alert(arrTiannetHide[i]);   arrTiannetHide[i].style.visibility = "";   }   }   //初始化日期。   function tiannetInitDate(strDate){   var arr = strDate.split(tiannetDateSplit);   tiannetYear = arr[0];   tiannetMonth = arr[1];   tiannetDay = arr[2];   }   //清空   function tiannetClear(){   tiannetOutObject.value = "";   tiannetHideControl();   }   //任意点击时关闭该控件   function document.onclick(){   with(window.event.srcElement){   if (tagName != "INPUT" && getAttribute("Author") != "tiannet")   tiannetHideControl();   }   }   //按ESC键关闭该控件   function document.onkeypress(){   if( event.keyCode == 27 ){   tiannetHideControl();   }   }   </script>   (1)只选择日期 <input type="text" name="date" readOnly onClick="setDay(this);"><br/>   (2)选择日期和小时 <input type="text" name="dateh" readOnly onClick="setDayH(this);"><br/>   (3)选择日期和小时及分钟 <input type="text" name="datehm" readOnly onClick="setDayHM(this);">