JavaScript密码保险检测 _JavaScript

JavaScript密码安全检测
<html>
<head>
<meta http-equiv="Content-Type" content="text/html" />
<title>JavaScript密码安全检测</title>
<style type="text/css">
body{
 font-size:12px;
 font-family: Arial, Helvetica, sans-serif;
 margin:0;
}
form{
 margin:2em;
}
#chkResult{margin-left:53px;height:15px;}
</style>
</head> 


<body>
<form name="form1" action=http://www.qpsh.com>
 <label for="pwd">用户密码</label>
 <input type="password" name="pwd" onblur="chkpwd(this)" />
 <div id="chkResult"></div>
 <label for="pwd2">重复密码</label>
 <input type="password" name="pwd2" /> 
<input type="submit" value="注册" name="B1"></form>
<script type="text/javascript">
 function chkpwd(obj){
  var t=obj.value;
  var id=getResult(t);
  
//定义对应的消息提示
  var msg=new Array(4);
  msg[0]="密码过短。";
  msg[1]="密码安全性差。";
  msg[2]="密码强度良好。";
  msg[3]="密码强度很高。";
  
  var sty=new Array(4);
  sty[0]=-45;
  sty[1]=-30;
  sty[2]=-15;
  sty[3]=0;
  
  var col=new Array(4);
  col[0]="gray";
  col[1]="red";
  col[2]="#ff6600";
  col[3]="Green";
  
var sWidth=300;
  var sHeight=15;
  var Bobj=document.getElementById("chkResult"); 

  Bobj.style.fontSize="12px";
  Bobj.style.color=col[id];
  Bobj.style.width=sWidth + "px";
  Bobj.style.height=sHeight + "px";
  Bobj.style.lineHeight=sHeight + "px";
  Bobj.style.textIndent="20px";
  Bobj.innerHTML="检测提示：" + msg[id];
 }
 
 function getResult(s){
  if(s.length < 4){
   return 0;
  }
  var ls = 0;
  if (s.match(/[a-z]/ig)){
   ls++;
  }
  if (s.match(/[0-9]/ig)){
   ls++;
  }
   if (s.match(/(.[^a-z0-9])/ig)){
   ls++;
  }
  if (s.length < 6 && ls > 0){
   ls--;
  }
  return ls
 }
</script>
</body> 

</html>
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