html表单验证程序

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<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
<title>vForm表单验证程序</title> 
<style type="text/css"> 
<!-- 
div.info { 
 width: 170px; 
 overflow:visible; 
 height:auto; 
 font-size: small; 
 position: absolute; 
 background-color: #FFffdd; 
 border: 1px solid #000; 
 filter:progid:DXImageTransform.Microsoft.Shadow(color=#111111,direction=135,strength=3); 
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 padding: 5px; 
 left: 671px; 
} 
div.info_title 
 
.err{ 
 padding: 5px; 
 height: 50px; 
 width: 24em; 
 position: absolute; 
 background-color: #FFFFCC; 
 left: 196px; 
 top: 114px; 
 font-size: small; 
 opacity:0.5; 
 border: 1px double #333333; 
 filter: Shadow(Color=#000000, Direction=135); 
 filter:progid:DXImageTransform.Microsoft.Shadow(color=#111111,direction=135,strength=5); 
 
} 
#form1 .text_input { 
 border-top: 1px solid #333333; 
 border-right: 1px solid #999999; 
 border-bottom: 1px solid #ddd; 
 border-left: 1px solid #000000; 
} 
.info_title { 
 color: #FF0000; 
 background: #ACB9D1; 
} 
#form1 { 
 position: static; 
 left: 581px; 
 top: 463px; 
 border: 1px solid #3300FF; 
 padding: 5px; 
 ; 
} 
#imok { 
 display: block; 
 position: absolute; 
 height:315px; 
 overflow:scroll; 
 left: 100px; 
 top: 100px; 
 width: 306px; 
} 
.title h1 { 
 background: #33CCFF; 
 border-bottom: medium solid #3366FF; 
} 
.title p { 
 font-size: medium; 
 text-indent: 2em; 
} 
body { 
 font-family: Verdana, Arial, Helvetica, sans-serif; 
 font-size: medium; 
} 
 
code { 
 font: 12px/18px "lucida Grande", verdana, lucida, Arial, helvetica, "宋体", sans-serif; 
 border:1px solid #0099cc; 
 padding:5px; 
 margin: 5px; 
 width: 80%; 
 color: #000; 
 background-color: #ddedfb; 
 display: block; 
} 
 
--> 
</style> 
<script language="JavaScript" type="text/javascript"> 
//程序基本思路：通过扩展对象来实现，将String扩展 将默认的表单元素扩展 定义两个自定义对象。 
//String.isEmail 
//String.isUrl 
//表单元素.required 
//表单元素.isvalid 
//表单元素.validate 
// 
 
//字符串验证扩展 
//├电子邮件验证 
String.prototype.isEmail = function(){ 
 var tmpStr = this; 
 var email = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/; 
 return email.test(tmpStr) 
} 
//├http地址验证 
String.prototype.isUrl = function(){ 
 var url = /^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"\"])*$/; 
 var tmpStr = this; 
 return url.test(tmpStr); 
} 
//├日期验证（第一部分） 
String.prototype.isDateTime = function(){ 
 if(Date.parse(this)||Date.parseDate(this)) 
 { 
  return true; 
 } 
 else 
 { 
  return false; 
 } 
} 
String.prototype.isInteger = function() 
{ 
 var _i = /^[-\+]?\d+$/; 
 var _s = this;  
 return _i.test(_s); 
} 
Date.prototype.toIsoDate = function() 
{ 
 var _d = this; 
 var _s; 
 _Y =_d.getFullYear(); 
 _M = _d.getMonth() + 1; 
 _D = _d.getDate(); 
 _H = _d.getHours(); 
 _I = _d.getMinutes(); 
 _S = _d.getSeconds(); 
 with(_d) 
 { 
  _s = [getMonth() + 1,getDate(),getHours(),getMinutes(),getSeconds()]; 
 } 
 for(var i = 0; i < _s.length; i++) 
 { 
  if (_s[i].toString().length == 1)_s[i]= '0'+_s[i]; 
 } 
  return (_Y + '-'+_s[0]+'-'+_s[1]+' '+_s[2]+':'+_s[3]+':'+_s[4]) 
} 
//├日期验证（第二部分） 
Date.parseDate = function(str, fmt) { 
 fmtfmt = fmt||"%Y-%m-%d %H:%M"; 
 var today = new Date(); 
 var y = 0; 
 var m = -1; 
 var d = 0; 
 var a = str.split(/\W+/); 
 var b = fmt.match(/%./g); 
 var i = 0, j = 0; 
 var hr = 0; 
 var min = 0; 
 for (i = 0; i < a.length; ++i) { 
  if (!a[i]) 
   continue; 
  switch (b[i]) { 
      case "%d": 
      case "%e": 
   d = parseInt(a[i], 10); 
   break; 
 
      case "%m": 
   m = parseInt(a[i], 10) - 1; 
   break; 
 
      case "%Y": 
      case "%y": 
   y = parseInt(a[i], 10); 
   (y < 100) && (y += (y > 29) ? 1900 : 2000); 
   break; 
 
      case "%b": 
      case "%B": 
   for (j = 0; j < 12; ++j) { 
    if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { m = j; break; } 
   } 
   break; 
 
      case "%H": 
      case "%I": 
      case "%k": 
      case "%l": 
   hr = parseInt(a[i], 10); 
   break; 
 
      case "%P": 
      case "%p": 
   if (/pm/i.test(a[i]) && hr < 12) 
    hr += 12; 
   else if (/am/i.test(a[i]) && hr >= 12) 
    hr -= 12; 
   break; 
 
      case "%M": 
   min = parseInt(a[i], 10); 
   break; 
  } 
 } 
 if (isNaN(y)) y = today.getFullYear(); 
 if (isNaN(m)) m = today.getMonth(); 
 if (isNaN(d)) d = today.getDate(); 
 if (isNaN(hr)) hr = today.getHours(); 
 if (isNaN(min)) min = today.getMinutes(); 
 if (y != 0 && m != -1 && d != 0) 
  return new Date(y, m, d, hr, min, 0); 
 y = 0; m = -1; d = 0; 
 for (i = 0; i < a.length; ++i) { 
  if (a[i].search(/[a-zA-Z]+/) != -1) { 
   var t = -1; 
   for (j = 0; j < 12; ++j) { 
    if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { t = j; break; } 
   } 
   if (t != -1) { 
    if (m != -1) { 
     d = m+1; 
    } 
    m = t; 
   } 
  } else if (parseInt(a[i], 10) <= 12 && m == -1) { 
   m = a[i]-1; 
  } else if (parseInt(a[i], 10) > 31 && y == 0) { 
   y = parseInt(a[i], 10); 
   (y < 100) && (y += (y > 29) ? 1900 : 2000); 
  } else if (d == 0) { 
   d = a[i]; 
  } 
 } 
 if (y == 0) 
  y = today.getFullYear(); 
 if (m != -1 && d != 0) 
  return new Date(y, m, d, hr, min, 0); 
 return today; 
}; 
//扩展完成 
 
//对象定义 
 
var vform = new Object; 
//获取弹出提示的显示位置 
vform.getAbsolutePos = function(el) { 
 var _p = { x: 0, y: 0 }; 
  do{ 
    _p.x += (el.offsetLeft - el.scrollLeft); 
    _p.y += (el.offsetTop - el.scrollTop);  
  } 
   while(elel=el.offsetParent) 
     return _p; 
      }; 
vform.toString = function() 
{ 
 return("vForm表单验证程序\n版本：1.0beta\n作者：雷晓宝\n时间：2006-07-31\n网址：http://lxbzj.com\n许可：LGPL"); 
} 
vform.rules = new Array; 
vform.rules.add = function(obj,minLength,dataType,errmsg,maxLength,rule,patams) 
{ 
    var curlen = this.length; 
        this[curlen] = [obj,minLength,dataType,errmsg,maxLength,rule,patams]; 
        //this[curlen] = [ 0 ,    1    ,    2   ,   3  ,   4  ,  5 ,   6  ]; 
 
    return this.length; 
} 
vform.init= function() 
{ 
 if(document.getElementById(this.form_id)) 
 { 
  //获取表单 
  var o = document.getElementById(this.form_id); 
  //遍历规则 
  for(var i = 0 ;i< this.rules.length;i++) 
  { 
   _r = this.rules[i] 
   //如果存在元素，则添加验证程序 
   if(_o = o.elements[_r[0]]) 
   { 
    //判断是是否必填,是否有最小长度 
    if(_r[1] > 0 ) 
    { 
     _o.required = true;//必填的含义和最小长度为1是一样的 
     _o.minLength = parseInt(_r[1]); 
    } 
    else 
    { 
     _o.required = false; 
     _o.minLength = 0; 
    } 
    //判断是否有最大长度; 
    if(_r[4]) 
    { 
     _o.maxLength = parseInt(_r[4]); 
    } 
    //添加长度验证函数 
    _o.validLength = function () 
    { 
     var b =true; 
     if(this.minLength) 
     { 
      b = (this.minLength <= this.value.length); 
     } 
     if(this.type == 'textarea' && this.maxLength ) 
     { 
      bb = b && (this.maxLength >= this.value.length ); 
     } 
     return (b); 
    } 
    //添加验证，进行格式验证 
    switch(_r[2]) 
    { 
     case 'e-mail': 
      _o.validate = function() 
      { 
       thisthis.isvalid = this.validLength() && this.value.isEmail(); 
       return (this.isvalid); 
      }; 
      break; 
     case 'url': 
      _o.validate = function() 
      { 
       if (this.value.substring(0,7) != 'http://')this.value = 'http://' +this.value; 
       thisthis.isvalid = this.validLength() && this.value.isUrl(); 
       return (this.isvalid); 
      } 
      break; 
     case 'date': 
      _o.validate = function() 
      { 
       var _d = Date.parse(this.value)||Date.parseDate(this.value); 
       this.value =  _d.toIsoDate(); 
        
       thisthis.isvalid = this.validLength() && this.value.isDateTime(); 
       return (this.isvalid); 
       aa=a>b?1:1; 
      } 
      break; 
     case 'number': 
      _o.validate = function() 
      { 
       thisthis.isvalid = this.validLength() && this.value.isInteger(); 
       return (this.isvalid); 
 
      } 
      break; 
     case 'any': 
      _o.validate = function() 
      { 
       thisthis.isvalid = this.validLength(); 
       return  this.isvalid 
      } 
      break; 
     default : 
      var regexp = /^\\\w+$/; 
      if ( regexp.test(_r[2]))//表示必须和同表单下的某个字段的值一样。用于重复输入的验证 
      { 
       _el = _r[2].substring(1); 
       if (o.elements[_el]){ 
        _o.equal = _el; 
        _o.validate = function() 
        { 
         if(_o = this.form.elements[this.equal]) 
         { 
          if ( (_o.value == this.value) && this.validLength()) 
          { 
           return true; 
          }else { 
          return false; 
          } 
         }else{ 
          alert('setup error'); 
         } 
         
        } 
       }else 
       { 
        alert(_el + 'is not a valid form element'); 
        _o.validate = function(){return true;} 
       } 
      } 
      var regexp1 = /^\\(==|!=|>=|<=|>|<)/; 
      if ( regexp1.test(_r[2]) ) 
      { 
       _s0 = _r[2]; 
       _s1 = RegExp.$1; 
       _s2 = _s0.replace(regexp1,''); 
       _operator = _s1.substring(0);//比较操作符 
       var regexp2 = /^\w+$/; 
       if (regexp2.test(_s2))//是一个标志符，整数 或者变量 
       { 
        _o.operation = _operator+_s2; 
        _o.validate = function() 
        { 
         _b = true; 
         if (this.value.length !=0) 
         { 
          _b = eval(this.value+this.operation+';'); 
         }          
         _b_b = _b && this.validLength(); 
         return _b; 
        } 
       } 
      }; 
      break; 
       
    } 
    //添加验证提示(div标签)并初始化 
    var _p = vform.getAbsolutePos(_o); 
    _o.tip = new tip(_r[3],vform.err_class,_p.x+_o.offsetWidth+3,_p.y); 
 
    _o.tip.init(); 
    //失去焦点时，开始验证 
    _o.onblur =function(e) 
    { 
     if(this.minLength || this.value.length >0)  
     {  
      if( this.validate() ) 
      { 
       this.tip.hide(); 
      }else 
      { 
       this.tip.show();//显示错误信息 
       //this.focus(); 添加这句在ie里会导致死循环 :( 
       return false; 
      } 
     } 
    } 
   } 
  } 
 //焦点验证可能会失败,所以最后需要表单提交前的验证作为最后的补充。 
  document.getElementById(this.form_id).onsubmit = function() 
  { 
   var valid = true; 
   for(i=0;i<this.elements.length;i++) 
   { 
    _o = this.elements[i]; 
    if(_o.minLength && !_o.isvalid) 
    { 
     _o.tip.show(); 
     valid = false; 
    } 
   } 
   return valid; 
  } 
 } 
} 
//弹出提示定义 
function tip(text,className,x,y) 
{ 
 var o = document.createElement("div"); 
 o.style.display = "none"; 
 o.innerHTML = text; 
 //var t = document.createTextNode(text); 
 document.body.appendChild(o); 
 //o.appendChild(t); 
  
 this.init = function(dis) 
 { 
  o.className = "info"; 
  o.style.left = x+"px"; 
  o.style.top = y+"px"; 
  o.style.zindex = 100; 
  if(dis) 
  { 
   o.style.display = ""; 
  } 
  else 
  { 
   o.style.display = "none"; 
  } 
 } 
 this.show = function() 
 { 
  o.style.display = ""; 
 } 
 this.hide = function() 
 { 
  o.style.display = "none"; 
 } 
} 
function start() 
{ 
  vform.form_id = 'form1';//必须是表单的id 
  vform.err_class = 'info';//出错提示的样式 
 //验证规则，逐条填写 
vform.rules.add('frm_name',1,'e-mail','请您按照 user@domain.com 的格式输入电子邮件地址。<br /><span style="color:#f00">必填项目</span>'); 
  vform.rules.add('myweb',1,'url','请您按照 http://www.domain.com 的格式输入您的网址。<br /><span style="color:#f00">必填项目</span>'); 
  vform.rules.add('dateinput',0,'date','请按2000-03-05 的格式输入日期。<br /><span style="color:#f00">必填项目</span>'); 
  vform.rules.add('qq',0,'number','这必须是一个整数'); 
  vform.rules.add('least10',10,'any','您必须至少填写10个<br /><span style="color:#f00">必填项目</span>'); 
  vform.rules.add('ok100',1,'any','这里被限制为100个字符<br /><span style="color:#f00">必填项目</span>',100); 
  vform.rules.add('r_pass0',5,'any','密码最短5位最长20位<br /><span style="color:#f00">必填项目</span>',20); 
  vform.rules.add('r_pass1',5,"\\r_pass0",'确认密码错误<br /><span style="color:#f00">必填项目</span>',20); 
  vform.rules.add('frm_sel',1,"\\>2",'必须大于2000<br /><span style="color:#f00">必填项目</span>'); 
  vform.init(); 
  
} 
 
</script> 
</head> 
<body onload="start()"> 
 
<form id="form1" name="form1" method="get" action=""> 
 <label for="frm_name">e-mail: 
 <input name="frm_name" type="text" class="text_input" id="frm_name" title="输入一个电子邮箱地址"/> 
 </label> 
 * 
 <p> 
  <label for="r_pass0">输入密码： 
  <input name="r_pass0" type="text" class="text_input" id="r_pass0" title="输入您希望的密码 " /> 
  </label> 
 *</p> 
 <p> 
  <label for="r_pass1">密码确认： 
  <input name="r_pass1" type="text" class="text_input" id="r_pass1" title="将密码确认一次" /> 
  </label> 
 *</p> 
 <p> 
  <label for="frm_sel">选择： 
  <select name="frm_sel" id="frm_sel" title="请选择一个答案"> 
   <option value="0">请选择一个答案</option> 
   <option value="1" selected="selected">1000</option> 
   <option value="2">2000</option> 
   <option value="3">3000</option> 
   <option value="4">4000</option> 
   <option value="5">5000</option> 
   <option value="6">6000</option> 
  </select> 
</label> 
 *</p> 
 <p> 
  <label for="input3">输入网址： 
  <input name="myweb" type="text" class="text_input" id="input3" title="输入一个网址" onmousemove="" value="http://" maxlength="100"/> 
  </label> 
 *</p> 
 <p> 
  <label for="dateinput">输入日期 
  <input name="dateinput" type="text" class="text_input" title="输入一个日期" id="dateinput"/> 
</label> 
 *</p> 
 <p> 
  <label for="mub">输入数字 
  <input name="qq" type="text" class="text_input" title="填写数字" id="mub"/> 
  </label> 
 </p> 
 <p> 
  <label for="len">输入任意但长度限制为10个 
  <input name="least10" type="text" class="text_input" maxlength="88" id="len"/> 
  * 
  </label> 
 </p> 
 <p> 
  <label for="text">只能输入100个 
  <textarea name="ok100" cols="40" rows="5" id="text" title="详细内容"></textarea> 
  * 
  </label> 
 </p> 
 <p> 
  <input type="submit" name="Submit" value="提交" /> 
  <button onclick="alert(vform)" >关于验证程序</button> 
 </p> 
</form> 
<!--具体的日期设置，必须放在body的结束标签前面--> 
<script type="text/javascript"> 
  vform .init(); 
    Calendar.setup({ 
   inputField     :    "dateinput",   // 把这个改成你需要的 id 
   ifFormat       :    "%Y-%m-%d %H:%M", // format of the input field 
   showsTime      :    true, 
   //button     :    "dateinput_btn",  
   timeFormat     :    "24" 
   }); 
 </script> 
</body> 
</html>
posted @ 2014-08-10 10:05 商商-77 阅读(163) 评论(0) 编辑收藏举报
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