一个在时间选择上很有用的代码

最近公司在做一个系统，要用一个时间选择控件，本来是用ASP。NET来做，但最后我就用JS来写
具体代码（部分）：
TIME.JS
--------------------------------------
//请大家保证版本的完整性
function fTime(iHour,iSec,iMin)
{
return iHour+iSec+iMin;
}
//当前日期
//<input type="text" size="10" name="datBegin" value="<%=formatdatetime(dateandtime_start,2)%>" maxlength="10" readonly onclick="fPopCalendar(datBegin,datBegin);return false">日<%h_time(int(hour(dateandtime_start))),23,"datHourBegin"%>时<%h_time(int(minute(dateandtime_start))),59,"datMinuteBegin"%>分(日期格式:yyyy-mm-dd)
function getNowDate()
{
var nn=new Date();
year1=nn.getYear();
mon1=nn.getMonth()+1;
date1=nn.getDate();
var monstr1;
var datestr1
if(mon1<10)
monstr1="0"+mon1;
else
monstr1=""+mon1;

if(date1<10)
datestr1="0"+date1;
else
datestr1=""+date1;
return year1+"-"+monstr1+"-"+datestr1;
}
//目标日期
function getlastweekDate()
{
var nn=new Date();
year1=nn.getYear();
mon1=nn.getMonth()+1;
date1=nn.getDate();

var mm=new Date(year1,mon1-1,date1);
var tmp1=new Date(2000,1,1);
var tmp2=new Date(2000,1,15);
var ne=tmp2-tmp1;
var mm2=new Date();
mm2.setTime(mm.getTime()-ne);

year2=mm2.getYear();
mon2=mm2.getMonth()+1;
date2=mm2.getDate();

if(mon2<10)
monstr2="0"+mon2;
else
monstr2=""+mon2;

if(date2<10)
datestr2="0"+date2;
else
datestr2=""+date2;

return year2+"-"+monstr2+"-"+datestr2;
}

var gdCtrl = new Object();
var goSelectTag = new Array();
var gcGray = "#808080";
var gcToggle = "#FB8664";
var gcBG = "#e5e6ec";
var previousObject = null;
var gdCurDate = new Date();
var giYear = gdCurDate.getFullYear();
var giMonth = gdCurDate.getMonth()+1;
var giDay = gdCurDate.getDate();
function fSetToday() //直接获取现在的时间
{

}
function fSetDate(iYear, iMonth, iDay){
VicPopCal.style.visibility = "hidden";
if ((iYear == 0) && (iMonth == 0) && (iDay == 0)){
gdCtrl.value = "";
}else{
iMonth = iMonth + 100 + "";
iMonth = iMonth.substring(1);
iDay = iDay + 100 + "";
iDay = iDay.substring(1);
var t = "软件只做测试使用";
if(gdCtrl.tagName == "INPUT"){
gdCtrl.value = iYear+"-"+iMonth+"-"+iDay+" "+ t;
}else{
gdCtrl.innerText = iYear+"-"+iMonth+"-"+iDay+ " "+t;
}
}

for (i in goSelectTag)
goSelectTag[i].style.visibility = "visible";
goSelectTag.length = 0;

window.returnValue=gdCtrl.value;
//window.close();
}
function HiddenDiv()
{
var i;
VicPopCal.style.visibility = "hidden";
for (i in goSelectTag)
goSelectTag[i].style.visibility = "visible";
goSelectTag.length = 0;
}
function fSetSelected(aCell){
var iOffset = 0;
var iYear = parseInt(tbSelYear.value);
var iMonth = parseInt(tbSelMonth.value);

aCell.bgColor = gcBG;
with (aCell.children["cellText"]){
var iDay = parseInt(innerText);
if (color==gcGray)
iOffset = (Victor<10)?-1:1;
iMonth += iOffset;
if (iMonth<1) {
iYear--;
iMonth = 12;
}else if (iMonth>12){
iYear++;
iMonth = 1;
}
}
fSetDate(iYear, iMonth, iDay);
}
function Point(iX, iY){
this.x = iX;
this.y = iY;
}
function fBuildCal(iYear, iMonth) {
var aMonth=new Array();
for(i=1;i<7;i++)
aMonth[i]=new Array(i);

var dCalDate=new Date(iYear, iMonth-1, 1);
var iDayOfFirst=dCalDate.getDay();
var iDaysInMonth=new Date(iYear, iMonth, 0).getDate();
var iOffsetLast=new Date(iYear, iMonth-1, 0).getDate()-iDayOfFirst+1;
var iDate = 1;
var iNext = 1;
for (d = 0; d < 7; d++)
aMonth[1][d] = (d<iDayOfFirst)?-(iOffsetLast+d):iDate++;
for (w = 2; w < 7; w++)
for (d = 0; d < 7; d++)
aMonth[w][d] = (iDate<=iDaysInMonth)?iDate++:-(iNext++);
return aMonth;
}
function fDrawCal(iYear, iMonth, iCellHeight, sDateTextSize) {
var WeekDay = new Array("日","一","二","三","四","五","六");
var styleTD = " bgcolor='"+gcBG+"' bordercolor='"+gcBG+"' valign='middle' align='center' height='"+iCellHeight+"' style='font:bold arial "+sDateTextSize+";"; //Coded by Hcy email:hcy110@263.net
with (document) {
write("<tr>");
for(i=0; i<7; i++){
write("<td "+styleTD+"color:maroon' >"+ WeekDay[i] + "</td>");
}
write("</tr>");
for (w = 1; w < 7; w++) {
write("<tr>");
for (d = 0; d < 7; d++) {
write("<td id=calCell "+styleTD+"cursor:hand;' onMouseOver='this.bgColor=gcToggle' onMouseOut='this.bgColor=gcBG' onclick='fSetSelected(this)'>");
write("<font id=cellText Victor='Hcy_Flag'> </font>");
write("</td>")
}
write("</tr>");
}
}
}
function fUpdateCal(iYear, iMonth) {
myMonth = fBuildCal(iYear, iMonth);
var i = 0;
for (w = 0; w < 6; w++)
for (d = 0; d < 7; d++)
with (cellText[(7*w)+d]) {
Victor = i++;
if (myMonth[w+1][d]<0) {
color = gcGray;
innerText = -myMonth[w+1][d];

}else{
color = ((d==0)||(d==6))?"red":"black";
innerText = myMonth[w+1][d];

}
}
}
function fSetYearMon(iYear, iMon){
tbSelMonth.options[iMon-1].selected = true;
for (i = 0; i < tbSelYear.length; i++)
if (tbSelYear.options[i].value == iYear)
tbSelYear.options[i].selected = true;
fUpdateCal(iYear, iMon);
}
function fPrevMonth(){
var iMon = tbSelMonth.value;
var iYear = tbSelYear.value;

if (--iMon<1) {
iMon = 12;
iYear--;
}

fSetYearMon(iYear, iMon);
}
function fNextMonth(){
var iMon = tbSelMonth.value;
var iYear = tbSelYear.value;

if (++iMon>12) {
iMon = 1;
iYear++;
}

fSetYearMon(iYear, iMon);
}
function fToggleTags(){
with (document.all.tags("SELECT")){
for (i=0; i<length; i++)
if ((item(i).Victor!="Won")&&fTagInBound(item(i))){
item(i).style.visibility = "hidden";
goSelectTag[goSelectTag.length] = item(i);
}
}
}
function fTagInBound(aTag){
with (VicPopCal.style){
var l = parseInt(left);
var t = parseInt(top);
var r = l+parseInt(width);
var b = t+parseInt(height);
var ptLT = fGetXY(aTag);
return !((ptLT.x>r)||(ptLT.x+aTag.offsetWidth<l)||(ptLT.y>b)||(ptLT.y+aTag.offsetHeight<t));
}
}
function fGetXY(aTag){
var oTmp = aTag;
var pt = new Point(0,0);
do {
pt.x += oTmp.offsetLeft;
pt.y += oTmp.offsetTop;
oTmp = oTmp.offsetParent;
} while(oTmp.tagName!="BODY");
return pt;
}
// Main: popCtrl is the widget beyond which you want this calendar to appear;
// dateCtrl is the widget into which you want to put the selected date.
// i.e.: <input type="text" name="dc" style="text-align:center" readonly><INPUT type="button" value="V" onclick="fPopCalendar(dc,dc);return false">
function fPopCalendar(popCtrl, dateCtrl,strDate){
if (popCtrl == previousObject){
if (VicPopCal.style.visibility == "visible"){
HiddenDiv();
return true;
}

}
previousObject = popCtrl;
gdCtrl = dateCtrl;
fInitialDate(strDate);
fSetYearMon(giYear, giMonth);
var point = fGetXY(popCtrl);
with (VicPopCal.style) {
left = point.x+10; //弹出窗口的坐标
top = point.y+popCtrl.offsetHeight+15;
width = VicPopCal.offsetWidth;
width = 180; //
height = VicPopCal.offsetHeight;
height = 180;
fToggleTags(point);
visibility = 'visible';
}
}
// Added by Han Chen
function fInitialDate(strDate){
if( strDate == null || strDate.length != 10 )
return false;
var sYear = strDate.substring(0,4);
var sMonth = strDate.substring(5,7);
var sDay = strDate.substring(8,10);
if( sMonth.charAt(0) == '0' ) { sMonth = sMonth.substring(1,2); }
if( sDay.charAt(0) == '0' ) { sDay = sDay.substring(1,2); }
var nYear = parseInt(sYear );
var nMonth = parseInt(sMonth);
var nDay = parseInt(sDay );

if ( isNaN(nYear ) ) return false;
if ( isNaN(nMonth) ) return false;
if ( isNaN(nDay ) ) return false;
var arrMon = new Array(12);
arrMon[ 0] = 31; arrMon[ 1] = nYear % 4 == 0 ? 29:28;
arrMon[ 2] = 31; arrMon[ 3] = 30;
arrMon[ 4] = 31; arrMon[ 5] = 30;
arrMon[ 6] = 31; arrMon[ 7] = 31;
arrMon[ 8] = 30; arrMon[ 9] = 31;
arrMon[10] = 30; arrMon[11] = 31;
if ( nYear < 1900 || nYear > 2100 ) return false;
if ( nMonth < 1 || nMonth > 12 ) return false;
if ( nDay < 1 || nDay > arrMon[nMonth - 1] ) return false;
giYear = nYear;
giMonth = nMonth;
giDay = nDay;
return true;
}
var gMonths = new Array("1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月");
with (document) {
write("<Div id='VicPopCal' style='POSITION:absolute;VISIBILITY:hidden;border:2px ridge;z-index:100;'>");
write("<table border='0' bgcolor='#cccccc'>");
write("<TR>");
write("<td valign='middle' align='center'><input type='button' name='PrevMonth' value='<' style='height:20;width:20;FONT:bold' onClick='fPrevMonth()'>");
write(" <SELECT name='tbSelYear' onChange='fUpdateCal(tbSelYear.value, tbSelMonth.value)' Victor='Won'>");
for(i=1950;i<2030;i++)
write("<OPTION value='"+i+"'>"+i+" 年</OPTION>");
write("</SELECT>");
write(" <select name='tbSelMonth' onChange='fUpdateCal(tbSelYear.value, tbSelMonth.value)' Victor='Won'>");
for (i=0; i<12; i++)
write("<option value='"+(i+1)+"'>"+gMonths[i]+"</option>");
write("</SELECT>");

write(" <input type='button' name='PrevMonth' value='>' style='height:20;width:20' onclick='fNextMonth()'>");
write("</td>");
write("</TR><TR>");
write("<td align='center'>");
write("<DIV style='background-color:teal'><table width='100%' border='0'>");
fDrawCal(giYear, giMonth, 0, '0');
write("</table></DIV>");
write("</td>");
write("</TR><TR><TD align='center'>");

//
write(" <select name='tbSelHour' onChange='fTime(tbSelHour,tbSelSec,tbSelMin)' Victor='Won'>");
for(i=0;i<24;i++)
{
if(i<10)
{
write("<OPTION value='0"+i+"'>"+i+"时</OPTION>");
}
else
{
write("<OPTION value='"+i+"'>"+i+"时</OPTION>");
}
}
write("</SELECT>");
write(" <select name='tbSelSec' onChange='fTime(tbSelHour,tbSelSec,tbSelMin)' Victor='Won'>");
for(i=0;i<60;i++)
if(i<10)
{
write("<OPTION value='0"+i+"'>"+i+"分</OPTION>");
}
else
{
write("<OPTION value='"+i+"'>"+i+"分</OPTION>");
}
write("</SELECT>");
write(" <select name='tbSelMin' onChange='fTime(tbSelHour,tbSelSec,tbSelMin)' Victor='Won'>");
for(i=0;i<60;i++)
if(i<10)
{
write("<OPTION value='0"+i+"'>"+i+"秒</OPTION>");
}
else
{
write("<OPTION value='"+i+"'>"+i+"秒</OPTION>");
}
write("</SELECT>");
//

write("<TABLE width='100%'><TR><TD align='center'>");
write("<font size='2' onclick='fSetDate(0,0,0)' onMouseOver='this.style.color=gcToggle' onMouseOut='this.style.color=0'> 清空</font>");
//B style='cursor:hand'被替换为font size='2'
write("</td><td algin='center'>");
write("<font size='2' onclick='fSetDate(giYear,giMonth,giDay)' onMouseOver='this.style.color=gcToggle' onMouseOut='this.style.color=0'>今天: "+giYear+"-"+giMonth+"-"+giDay+"</font>");
//B style='cursor:hand'被替换为font size='2'
write("</td></tr></table>");
write("</TD></TR>");
write("</TABLE></Div>");
}

HTML：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>无标题文档</title>
<style type="text/css">
<!--
.style1 {font-size: 10px}
-->
</style>
</head>
<body>
<body bgcolor="#D6D3CE">
<script language="javascript" src="time.js"> //调用JS代码
</script>
<div align="center">
<center>
<table width="248" border="0">
<tr>
<td nowrap width="599"><span class="style1">选择时间</span>:<input class="input" onclick="fPopCalendar(regdate,regdate);return false" type="text" name="regdate" size="30"></td>
</tr>
</table>
</center>
</div>
</body>
</body>
</html>