JS脚本实现日历的控件效果

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//日历
var date_start,date_end,g_object
var today = new Date();
var separator="-";
var inover=false;

//mode :时间变换的类型0-年 1-月 2-直接选择月
function change_date(temp,mode)
{
var t_month,t_year
if (mode){
if(mode==1)
t_month=parseInt(cele_date_month.value,10)+parseInt(temp,10);
else
t_month=parseInt(temp)
if (t_month<cele_date_month.options(0).text) {
cele_date_month.value=cele_date_month.options(cele_date_month.length-1).text;
change_date(parseInt(cele_date_year.value,10)-1,0);
}
else{
if (t_month>cele_date_month.options(cele_date_month.length-1).text){
cele_date_month.value=cele_date_month.options(0).text;
change_date(parseInt(cele_date_year.value,10)+1,0);
}
else
{cele_date_month.value=t_month;
set_cele_date(cele_date_year.value,cele_date_month.value);
}
}
}
else{
t_year=parseInt(temp,10);

if (t_year<cele_date_year.options(0).text) {
cele_date_year.value=cele_date_year.options(0).text;
set_cele_date(cele_date_year.value,1);
}
else{
if (parseInt(t_year,10)>parseInt(cele_date_year.options(cele_date_year.length-1).text,10)){
cele_date_year.value=cele_date_year.options(cele_date_year.length-1).text;
set_cele_date(cele_date_year.value,12);
}
else
{cele_date_year.value=t_year;
set_cele_date(cele_date_year.value,cele_date_month.value);
}
}
}
/*********2002-02-01 MODIFY BY WING **************/
window.cele_date.focus();
/****************MODIFY END***********************/
}

//初始化日历
function init(d_start,d_end)
{
var temp_str;
var i=0
var j=0
date_start=new Date(1980,7,1)
date_end=new Date(2004,8,1)
document.writeln("<div name=/"cele_date/" id=/"cele_date/" style=/"display:none/" style=/"LEFT: 69px; POSITION: absolute; TOP: 159px;Z-INDEX:99/" onClick=/"event.cancelBubble=true;/" onBlur=/"hilayer()/" onMouseout=/"lostlayerfocus()/">-</div>");
window.cele_date.innerHTML="";
temp_str="<table border=/"1/" bgcolor=/"#DDDDDD/" bordercolor=/"white/"><tr><td colspan=7 onmouseover=/"overcolor(this)/">";
temp_str+="<input type=/"Button/" value=/"<</" onclick=/"change_date(-1,1)/" onmouseover=/"getlayerfocus()/" style=/"color: #000099; background-color: #BFBFBF; cursor: hand/">-";

temp_str+=""
temp_str+="<select name=/"cele_date_year/" id=/"cele_date_year/" language=/"javascript/" onchange=/"change_date(this.value,0)/" onmouseover=/"getlayerfocus()/" onblur=/"getlayerfocus()/" style=/"font-size: 9pt; border: 1px #666666 outset; background-color: #F4F8FB/">"

for (i=1900;i<=2020;i++)
{
temp_str+="<OPTION value=/""+i.toString()+"/">"+i.toString()+"</OPTION>";
}
temp_str+="</select>-";
temp_str+=""
temp_str+="<select name=/"cele_date_month/" id=/"cele_date_month/" language=/"javascript/" onchange=/"change_date(this.value,2)/" onmouseover=/"getlayerfocus()/" onblur=/"getlayerfocus()/" style=/"font-size: 9pt; border: 1px #666666 outset; background-color: #F4F8FB/">"

for (i=1;i<=12;i++)
{
temp_str+="<OPTION value=/""+i.toString()+"/">"+i.toString()+"</OPTION>";
}
temp_str+="</select>-";
temp_str+=""
temp_str+="<input type=/"Button/" value=/">>/" onclick=/"change_date(1,1)/" onmouseover=/"getlayerfocus()/" style=/"color: #000099; background-color: #BFBFBF; cursor: hand/">";

temp_str+="</td></tr><tr><td onmouseover=/"overcolor(this)/">"
temp_str+="<font color=red>日</font></td><td>";temp_str+="一</td><td>"; temp_str+="二</td><td>"; temp_str+="三</td><td>"
temp_str+="四</td><td>";temp_str+="五</td><td>"; temp_str+="六</td></tr>";
for (i=1 ;i<=6 ;i++)
{
temp_str+="<tr>";
for(j=1;j<=7;j++){
temp_str+="<td name=/"c"+i+"_"+j+"/"id=/"c"+i+"_"+j+"/" style=/"CURSOR: hand/" style=/"COLOR:#000000/" language=/"javascript/" onmouseover=/"overcolor(this)/" onmouseout=/"outcolor(this)/" onclick=/"td_click(this)/">?</td>"
}
temp_str+="</tr>"
}
temp_str+="</td></tr></table>";
window.cele_date.innerHTML=temp_str;
}
function set_cele_date(year,month)
{
var i,j,p,k
var nd=new Date(year,month-1,1);
event.cancelBubble=true;
cele_date_year.value=year;
cele_date_month.value=month;
k=nd.getDay()-1
var temp;
for (i=1;i<=6;i++)
for(j=1;j<=7;j++)
{
eval("c"+i+"_"+j+".innerHTML=/"/"");
eval("c"+i+"_"+j+".bgColor=/"#DDDDDD/"");
eval("c"+i+"_"+j+".style.cursor=/"hand/"");
}
while(month-1==nd.getMonth())
{ j=(nd.getDay() +1);
p=parseInt((nd.getDate()+k) / 7)+1;
eval("c"+p+"_"+j+".innerHTML="+"/""+nd.getDate()+"/"");
if ((nd.getDate()==today.getDate())&&(cele_date_month.value==today.getMonth()+1)&&(cele_date_year.value==today.getYear())){
eval("c"+p+"_"+j+".bgColor=/"#EFFB64/"");
}
if (nd>date_end || nd<date_start)
{
eval("c"+p+"_"+j+".bgColor=/"#FF9999/"");
eval("c"+p+"_"+j+".style.cursor=/"text/"");
}
nd=new Date(nd.valueOf() + 86400000)
}
}

//s_object：点击的对象；d_start-d_end有效的时间区段；需要存放值的控件；
function show_cele_date(eP,d_start,d_end,t_object)
{
window.cele_date.style.display="";
window.cele_date.style.zIndex=99
var s,cur_d
var eT = eP.offsetTop;
var eH = eP.offsetHeight+eT;
var dH = window.cele_date.style.pixelHeight;
var sT = document.body.scrollTop;
var sL = document.body.scrollLeft;
event.cancelBubble=true;
window.cele_date.style.posLeft = event.clientX-event.offsetX+sL-5;
window.cele_date.style.posTop = event.clientY-event.offsetY+eH+sT-5;
if (window.cele_date.style.posLeft+window.cele_date.clientWidth>document.body.clientWidth) window.cele_date.style.posLeft+=eP.offsetWidth-window.cele_date.clientWidth;
if (d_start!=""){
if (d_start=="today"){
date_start=new Date(today.getYear(),today.getMonth(),today.getDate());
}else{
s=d_start.split(separator);
date_start=new Date(s[0],s[1]-1,s[2]);
}
}else{
date_start=new Date(1900,1,1);
}

if (d_end!=""){
s=d_end.split(separator);
date_end=new Date(s[0],s[1]-1,s[2]);
}else{
date_end=new Date(3000,1,1);
}

g_object=t_object

cur_d=new Date()
set_cele_date(cur_d.getYear(),cur_d.getMonth()+1);
window.cele_date.style.display="block";

window.cele_date.focus();

}
function td_click(t_object)
{
var t_d
//取当前的时间代码，不要可以去掉
var time= new Date();
hours=time.getHours();
mins=time.getMinutes();
secs=time.getSeconds();
//if (hours<10)
//hours="0"+hours;
//if(mins<10)
//mins="0"+mins;
//if (secs<10)
//secs="0"+secs;
//取当前时间结束
if (parseInt(t_object.innerHTML,10)>=1 && parseInt(t_object.innerHTML,10)<=31 )
{ t_d=new Date(cele_date_year.value,cele_date_month.value-1,t_object.innerHTML)
if (t_d<=date_end && t_d>=date_start)
{
var year = cele_date_year.value;
var month = cele_date_month.value;
var day = t_object.innerHTML;
//if (parseInt(month)<10) month = "0" + month;
//if (parseInt(day)<10) day = "0" + day;

g_object.value=year+separator+month+separator+day+" "+hours+":"+mins+":"+secs;//组合数据并写入控件
window.cele_date.style.display="none";};
}

}
function h_cele_date()
{
window.cele_date.style.display="none";
}

function overcolor(obj)
{
if (obj.style.cursor=="hand") obj.style.color = "#FFFFFF";

inover=true;
window.cele_date.focus();

}

function outcolor(obj)
{
obj.style.color = "#000000";
inover=false;

}

function getNow(o){
var Stamp=new Date();
var year = Stamp.getYear();
var month = Stamp.getMonth()+1;
var day = Stamp.getDate();
if(month<10){
month="0"+month;
}
if(day<10){
day="0"+day;
}
o.value=year+separator+month+separator+day;
}

function hilayer()
{
if (inover==false)
{
var lay=document.all.cele_date;
lay.style.display="none";
}
}
function getlayerfocus()
{
inover=true;
}
function lostlayerfocus()
{
inover=false;
}
init();
//日历结束