一个常用的js时间日期处理函数

时间:2012-12-29 08:41来源:未知作者:admin 点击: 次

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本文章提供这个js是从时代网站抓下来的，里面很多好用的js写法或直接使用时间喽，有需要的朋友可以参考一上。代码如下 var m_iDatePickerCount=0; var cl_dpMaxYear=9999; var cl_dpMaxMonth=11; var c

本文章提供这个js是从时代网站抓下来的，里面很多好用的js写法或直接使用时间喽，有需要的朋友可以参考一上。

代码如下

var m_iDatePickerCount=0;
var cl_dpMaxYear=9999;
var cl_dpMaxMonth=11;
var cl_dpMaxDay=31;
var cl_dpMinYear=1600;
var cl_dpMinMonth=0;
var cl_dpMinDay=1;

//获取当前日期
var t_today = new Date();
var t_now = t_today.getDate();
var t_year = t_today.getYear();
if (t_year < 2000) t_year += 1900; // Y2K fix
var t_month = t_today.getMonth()+1;
var monarr = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
if (((t_year % 4 == 0) && (t_year % 100 != 0)) || (t_year % 400 == 0)) monarr[1] = "29";

function createDatePicker(txtName,lYear,lMonth,lDay)
{
var Temp_today = new Date();
if(lYear==null) lYear=Temp_today.getYear();
if(lMonth==null) lMonth=Temp_today.getMonth()+1;
if(lDay==null) lDay=Temp_today.getDate();
var dpID="dp_"+(m_iDatePickerCount++);
var dt=dp_getValidDate(lYear,lMonth,lDay);
var dpName = "dpN_" + txtName;
if(dt==null)
dt=new Date();
document.write("<span class=DPFrame id="+dpID+" name="+dpName+">");
document.write("<input class=DPYear type=text value="+dt.getFullYear()+" size=4 maxlength=4 onfocus="return dp_focus('year');" onblur="return dp_blur('year');" onkeypress="return KeyFilter('number');" onkeydown="return dp_keyDown('year');">");
document.write("<font class=DPYearDes>年</font>");
document.write("<input class=DPMonth type=text value="+(dt.getMonth()+1)+" size=1 maxlength=2 onfocus="return dp_focus('month');" onblur="return dp_blur('month');" onkeypress="return KeyFilter('number');" onkeydown="return dp_keyDown('month');">");
document.write("<font class=DPMonthDes>月</font>");
document.write("<input class=DPDay type=text value="+dt.getDate()+" size=1 maxlength=2 onfocus="return dp_focus('day');" onblur="return dp_blur('day');" onkeypress="return KeyFilter('number');" onkeydown="return dp_keyDown('day');">");
document.write("<font class=DPDayDes>日</font>");
document.write("<span class=DPSep></span>");
document.write("<a class=DPDropBtn href="" onclick="dp_DropClick();return false;" title="选择日期">?</a>");
if(typeof(txtName)=="string" && txtName.length>0)
{
document.write("<input type=hidden value='"+dt.format("yyyy/mm/dd")+"' name="+txtName+">");
}
document.write("</span>");

var dp=document.all(dpID);
dp_initDatePicker(dp,dt);
return dp;
}

function dp_getValidDate(lYear,lMonth,lDay)
{
var dt=new Date();
if(lYear==null || isNaN(parseInt(lYear,10)))
lYear=dt.getFullYear();
else
lYear=parseInt(lYear,10);

if(lMonth==null || isNaN(parseInt(lMonth,10)))
lMonth=dt.getMonth();
else
lMonth=parseInt(lMonth,10)-1;

if(lDay==null || isNaN(parseInt(lDay,10)))
  lDay=dt.getDate();
else
  lDay=parseInt(lDay,10);

dt=new Date(lYear,lMonth,lDay);
var cdMax=new Date(cl_dpMaxYear,cl_dpMaxMonth,cl_dpMaxDay);
var cdMin=new Date(cl_dpMinYear,cl_dpMinMonth,cl_dpMinDay);
if(dt.compare(cdMax)>0 || dt.compare(cdMin)<0)
  dt=null;
return dt;
}

function dp_initDatePicker(dp,dt)
{
if(dp)
{
  //Private Property
  dp.curDate=dt;
  dp.dpEnabled=true;
  dp.maxDay=cl_dpMaxDay;
  dp.maxMonth=cl_dpMaxMonth;
  dp.maxYear=cl_dpMaxYear;
  dp.minDay=cl_dpMinDay;
  dp.minMonth=cl_dpMinMonth;
  dp.minYear=cl_dpMinYear;
  dp.oldDate=dt.clone();

  //Private Method
  dp.getDropDownTable=dp_getDropDownTable;
  dp.getMonthName=dp_getMonthName;
  dp.hideDropDown=dp_hideDropDown;
  dp.initDropDown=dp_initDropDown;
  dp.onDateChange=dp_onDateChange;
  dp.refreshPostText=dp_refreshPostText;
  dp.showDropDown=dp_showDropDown;

  //Public Property
  //All Span Properties can be used;
  dp.offsetHor=0;

  //Public Method
  dp.setFocus=dp_setFocus;
  dp.format=dp_format;
  dp.getDateContent=dp_getDateContent;
  dp.getDay=dp_getDay;
  dp.getEnabled=dp_getEnabled;
  dp.getMonth=dp_getMonth;
  dp.getYear=dp_getYear;
  dp.refreshView=dp_refreshView;
  dp.setAccessKey=dp_setAccessKey;
  dp.setCurDate=dp_setCurDate;
  dp.setNoBorder=dp_setNoBorder;
  dp.setDateDes=dp_setDateDes;
  dp.setEnabled=dp_setEnabled;
  dp.setFormat=dp_setFormat;
  dp.setMaxDate=dp_setMaxDate;
  dp.setMinDate=dp_setMinDate;
  dp.setTabIndex=dp_setTabIndex;
  dp.setWeekName=dp_setWeekName;

  //Event
  dp.dateChanged=null;

  //Init View
  dp.refreshView();
}
}

function dp_getYear()
{
var dp=this;
return dp.curDate.getFullYear();
}

function dp_getMonth()
{
var dp=this;
return dp.curDate.getMonth()+1;
}

function dp_getDay()
{
var dp=this;
return dp.curDate.getDate();
}

function dp_format(sFormat)
{
var dp=this;
return dp.curDate.format(sFormat);
}

function dp_setAccessKey(sKey)
{
var dp=this;
var src=dp.children[0];
if(src && src.tagName=="INPUT")
{
src.accessKey=sKey;
}
}

function dp_getEnabled()
{
var dp=this;
var val=false;

if(dp.dpEnabled)
val=true;
else
val=false;
return val;
}

function dp_setNoBorder()
{
var dp=this;
dp.style.border=0
dp.children[0].style.color="#ffffff"
dp.children[1].style.color="#ffffff"
dp.children[2].style.color="#ffffff"
dp.children[3].style.color="#ffffff"
dp.children[4].style.color="#ffffff"
dp.children[5].style.color="#ffffff"
dp.children[6].style.color="#ffffff"
dp.children[7].style.color="#ffffff"
}

function dp_setFocus()
{
var dp=this;
var src=dp.children[0];
if(src && src.tagName=="INPUT" && !src.disabled)
{
src.focus();
}
}

function dp_setFormat(sFormat)
{
this.formatString=sFormat;
this.refreshPostText();
}

function dp_refreshPostText()
{
var dp=this;
var sFormat="yyyy/mm/dd";

if(typeof(dp.formatString)=="string")
sFormat=dp.formatString;
var txt=dp.children[8];
if(txt && txt.tagName=="INPUT")
txt.value=dp.format(sFormat);
}

function dp_initDropDown()
{
var dp=this;
var ddt=dp.getDropDownTable();
if(ddt)
{
  ddt.curCell=null;
  var cell=null;
  var dt=new Date(dp.curDate.getFullYear(),dp.curDate.getMonth(),1);
  cell=ddt.rows[0].cells[1];
  if(cell)
  {
   cell.innerText=dp.getMonthName(dt.getMonth())+" "+dt.getFullYear();
  }

function dp_getMonthName(lMonth)
{
var mnArr=new Array("一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月");
return mnArr[lMonth];
}

function dp_showDropDown()
{
var dp=this;
var ddt=dp.getDropDownTable();
if(ddt)
{
  if(ddt.style.display=="block")
  {
   ddt.style.zIndex=10;
   dp.hideDropDown();
  }
  else
  {
   dp.initDropDown();
   if(ddt.clientWidth==0)
   {
    ddt.style.pixelLeft=-500;
    ddt.style.pixelTop=-500;
    ddt.style.display="block";
   }

   var ddtWidth=ddt.clientWidth==0?266:ddt.clientWidth;
   var ddtHeight=ddt.clientHeight==0?133:ddt.clientHeight;

   var lLeft=getOffsetLeft(dp);
   var lTop=getOffsetTop(dp)+dp.offsetHeight;

   if((lTop+ddtHeight)>(document.body.clientHeight+document.body.scrollTop))
   {
    lTop-=(ddtHeight+dp.offsetHeight+2);
   }

   if((lLeft+ddtWidth)>(document.body.clientWidth+document.body.scrollLeft))
   {
    lLeft=document.body.clientWidth+document.body.scrollLeft-ddtWidth-2;
   }

   var off=parseInt(dp.offsetHor,10);
   if(isNaN(off))
    off=0;
   ddt.style.pixelLeft=lLeft+off;
   ddt.style.pixelTop=lTop;
   ddt.style.zIndex=500;
   ddt.dpOldDocClick=document.onclick;
   ddt.dpOldDocKeyDown=document.onkeydown;

   event.cancelBubble=true;
   event.returnValue=false;
   document.onclick=dp_sub_docClick;
   document.onkeydown=dp_sub_dockeydown;

ddt.style.display="block";
}
}
}

function getDropDownTable()
{
var ddt=document.all("dpDropDownTable");
if(!(ddt && ddt.tagName=="TABLE"))
ddt=null;
return ddt;
}

function dp_hideDropDown()
{
var ddt=getDropDownTable();
if(ddt)
{
  ddt.style.display="none";
  document.onclick=ddt.dpOldDocClick;
  document.onkeydown=ddt.dpOldDocKeyDown;
}
}

function dp_getDropDownTable()
{
var dp=this;
dp.dropDownTable=dp_createDropDown();

if(dp.dropDownTable && dp.dropDownTable.tagName=="TABLE")
{
  dp.dropDownTable.dp=dp;
  return dp.dropDownTable;
}
else
  return null;
}

function dp_onDateChange()
{
var dp=this;
if(dp.curDate.compare(dp.oldDate)!=0)
{
  dp.oldDate=dp.curDate.clone();
  dp.refreshView();
  dp.refreshPostText();
  if(typeof(dp.dateChanged)=="function")
   dp.dateChanged(dp.curDate.getFullYear(),dp.curDate.getMonth()+1,dp.curDate.getDate());
}
}

function dp_setCurDate(lYear,lMonth,lDay)
{
var dp=this;
var hr=false;

lYear=parseInt(lYear,10);
lMonth=parseInt(lMonth,10);
lDay=parseInt(lDay,10);

if(!(isNaN(lYear) || isNaN(lMonth) || isNaN(lDay)))
{
  var dt=new Date(lYear,lMonth-1,lDay);
  var dMax=new Date(dp.maxYear,dp.maxMonth,dp.maxDay);
  var dMin=new Date(dp.minYear,dp.minMonth,dp.minDay);
  if(dt.compare(dMax)<=0 && dt.compare(dMin)>=0)
  {
   dp.curDate=dt;
   dp.onDateChange();
   hr=true;
  }
}

if(!hr)
  dp.refreshView();
return hr;
}

function dp_DropClick()
{
var src=event.srcElement;
var dp=getParentFromSrc(src,"SPAN")
if(dp && dp.className=="DPFrame" && dp.dpEnabled)
{
dp.showDropDown();
}
}

function dp_keyDown(srcType)
{
var src=event.srcElement;
var dp=getParentFromSrc(src,"SPAN")
var bRefresh=true;

if(dp && dp.className=="DPFrame")
{
  var lYear=dp.curDate.getFullYear();
  var lMonth=dp.curDate.getMonth();
  var lDay=dp.curDate.getDate();
  var lStep=0;

  switch(event.keyCode)
  {
   case 38:
    lStep=1;
    break;
   case 40:
    lStep=-1;
    break;
   case 13:
    event.keyCode=9;
    break;
   default:
    bRefresh=false;
  }

  switch(srcType)
  {
   case 'year':
    lYear+=lStep;
    break;
   case 'month':
    lMonth+=lStep;
    break;
   case 'day':
    lDay+=lStep;
    break;
   default:;
  }
  if(bRefresh)
   dp.setCurDate(lYear,lMonth+1,lDay);
}
return true;
}

function dp_sub_docClick()
{
var src=event.srcElement;
var ddt=getParentFromSrc(src,"TABLE");
if(!ddt || ddt.id!="dpDropDownTable")
{
dp_hideDropDown();
}
event.cancelBubble=true;
event.returnValue=false;

return false;
}

function dp_sub_dockeydown()
{
dp_hideDropDown();
return true;
}

function initDateObject()
{
Date.prototype.compare=date_compare;
Date.prototype.clone=date_clone;
Date.prototype.format=date_format;
}

function date_format(sFormat)
{
var dt=this;
if(sFormat==null || typeof(sFormat)!="string")
sFormat="";
sFormat=sFormat.replace(/yyyy/ig,dt.getFullYear());
var y=""+dt.getYear();
if(y.length>2)
{
y=y.substring(y.length-2,y.length);
}
sFormat=sFormat.replace(/yy/ig,y);
sFormat=sFormat.replace(/mm/ig,dt.getMonth()+1);
sFormat=sFormat.replace(/dd/ig,dt.getDate());
return sFormat;
}

function date_clone()
{
return new Date(this.getFullYear(),this.getMonth(),this.getDate());
}

function date_compare(dtCompare)
{
var dt=this;
var hr=0;

if(dt && dtCompare)
{
  if(dt.getFullYear()>dtCompare.getFullYear())
   hr=1;
  else if(dt.getFullYear()<dtCompare.getFullYear())
   hr=-1;
  else if(dt.getMonth()>dtCompare.getMonth())
   hr=1;
  else if(dt.getMonth()<dtCompare.getMonth())
   hr=-1;
  else if(dt.getDate()>dtCompare.getDate())
   hr=1;
  else if(dt.getDate()<dtCompare.getDate())
   hr=-1;
}
return hr;
}

function date_getDateFromVT_DATE(dt)
{
dt=dt.replace(/-/g,"/");
dt=Date.parse(dt);
if(isNaN(dt))
dt=null;
else
dt=new Date(dt);
return dt;
}

//Call the initialize function
initDateObject();

function KeyFilter(type)
{
var berr=false;

switch(type)
{
  case 'date':
   if (!(event.keyCode == 45 || event.keyCode == 47 || (event.keyCode>=48 && event.keyCode<=57)))
    berr=true;
   break;
  case 'number':
   if (!(event.keyCode>=48 && event.keyCode<=57))
    berr=true;
   break;
  case 'cy':
   if (!(event.keyCode == 46 || (event.keyCode>=48 && event.keyCode<=57)))
    berr=true;
   break;
  case 'long':
   if (!(event.keyCode == 45 || (event.keyCode>=48 && event.keyCode<=57)))
    berr=true;
   break;
  case 'double':
   if (!(event.keyCode == 45 || event.keyCode == 46 || (event.keyCode>=48 && event.keyCode<=57)))
    berr=true;
   break;
  default:
   if (event.keyCode == 35 || event.keyCode == 37 || event.keyCode==38)
    berr=true;
}
return !berr;
}

function getParentFromSrc(src,parTag)
{
if(src && src.tagName!=parTag)
src=getParentFromSrc(src.parentElement,parTag);
return src;
}

// Is a element visible?
function isElementVisible(src)
{
if(src)
{
  var x=getOffsetLeft(src)+2-document.body.scrollLeft;
  var y=getOffsetTop(src)+2-document.body.scrollTop;
  if(ptIsInRect(x,y,0,0,document.body.offsetWidth,document.body.offsetHeight))
  {
   var e=document.elementFromPoint(x,y);
   return src==e;
  }
}

return false;
}

function ptIsInRect(x,y,left,top,right,bottom)
{
return (x>=left && x<right) && (y>=top && y<bottom);
}