密码强度验证
<html><head> <title>密码强度提示</title> <style type="text/css"> #chkResult{margin-left:53px;height:15px;} </style> </head> <body> <form name="form1"> <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" /> </form><script type="text/javascript">//检测密码的方法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]="密码太短。"; msg[1]="密码强度比较差。"; msg[2]="密码强度一般。"; msg[3]="密码强度高。"; var sty=new Array(4); sty[0]=-45; sty[1]=-30; sty[2]=-15; sty[3]=0; //消息提示对应的颜色 var col=new Array(4); col[0]="gray"; col[1]="red"; col[2]="#ff6600"; col[3]="Green"; //设置显示效果 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="密码检测提示：" + msg[id];}//定义检测函数,返回0/1/2/3分别代表无效/差/一般/强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>?