有提示的输入框日期格式-JS特效-爱易网页

有提示的输入框日期格式

日期：2014-05-18　浏览次数：20225 次

以下是程序代码

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
  <TITLE> 日期格式限制 ali_xixi.com整理收集 </TITLE>
<style>
 input{font-size:12px;}
</style>
<script type="text/javascript">
/*
 *** http://www.hansir.cn ***
*/
var date_help = function(inp, divide){
  this.inp = document.getElementById(inp);
  this.divide = divide;
  this.format = 'YYYY'+divide+'MM'+divide+'DD';
  //显示字符样式
  this.styleH='<span style="font-weight:bold; color:green">';
  this.styleB='</span>'; 
  this.load(); // 初始化
}
date_help.prototype={ 
 load: function(){
  // 创建一个用于显示提示的DIV并设置样式
  var div = document.createElement('div');
  div.setAttribute('style', 'height:21px; line-height:21px;font-family:宋体; font-size:13px; letter-spacing:1px; text-align:center; background:#fffff6; color:#f60; border:1px solid #ccc; border-top:0; position:absolute; visibility:hidden');
  div.style.cssText = 'height:21px; line-height:21px; font-family:宋体; font-size:13px; letter-spacing:1px; text-align:center; background:#fffff6; color:#f60; border:1px solid #ccc; border-top:0; position:absolute; visibility:hidden';
  div.innerHTML = this.format;
  this.div = div;
  document.body.appendChild(div);
  
  // 设置DIV的位置
  var inp = this.inp;
  var inpW = inp.offsetWidth, inpH = inp.offsetHeight;
  var left = 0, top = 0;
  while(inp != null){ // 计算输入框在页面里的坐标给提示框使用
   left += inp.offsetLeft;
   top += inp.offsetTop;
   inp = inp.offsetParent;
  }
  this.div.style.height = '21px';
  this.div.style.width = inpW-2 + 'px';
  this.div.style.left = left + 'px';
  this.div.style.top = inpH+top + 'px';
  
  // 加载输入框事件
  var oThis = this;
  this.inp.onfocus = function(){
   oThis.inp_v.call(oThis);
  }
  
  this.inp.onblur = function(){
   oThis.inp_h.call(oThis);
  }
        this.inp.onkeypress = function(e){ //键盘按下事件
   e?intKey=e.which:intKey=event.keyCode;
   return oThis.inp_press.call(oThis, intKey);
  }
  this.inp.onkeyup = function(e){
   e?intKey=e.which:intKey=event.keyCode; 
   oThis.inp_chk.call(oThis,intKey);
  }
  
 },
 inp_v: function(){ // 提示信息显示
  this.div.style.visibility = 'visible';
 },
  inp_h: function(){ // 提示信息显示
  if(new RegExp('^\\d+'+this.divide+'\\d'+this.divide).test(this.inp.value)){ // 月数补0
   this.inp.value = this.inp.value.replace(new RegExp('^(\\d+'+this.divide+')(\\d)(?='+this.divide+')'),'$10$2');
   this.parseDate();
   this.parseFormat();
  }
  if(new RegExp('^\\d+'+this.divide+'\\d+'+this.divide+'\\d$').test(this.inp.value)){ // 天数补0
   this.inp.value = this.inp.value.replace(/(\d)$/,'0$1');
   this.parseDate();
   this.parseFormat();
  }
        this.div.style.visibility = 'hidden';
    },
 inp_press: function(intKey){ //键键按下事件 只接受数字和分隔符
   return (new RegExp('[\\d'+this.divide+']').test(String.fromCharCode(intKey)) || (intKey==0||intKey==8));
 },
 inp_chk: function(intkey){ // 格式化日期及提示信息样式
  if(intKey==37||intKey==39)return; // 左右键不检测
  this.parseDate(intKey); // 格式化日期
  this.parseFormat(); // 格式化提示信息
 },
 
 parseDate: function(intKey){ // 格式化日期
  var intDate = this.inp.value.replace(/\s/g,'');
  var divide=this.divide;
  var strDateArray = intDate.split(divide);
  strDateArray[0]?intYear = strDateArray[0].replace(/^(\d*).*$/,'$1'):intYear='';
  strDateArray[1]?intMonth = strDat</div></div>

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