复制代码 代码如下:
<script type="text/javascript"> <br>function chkpwd(obj){ <br>var t=obj.value; <br>var id=getResult(t); <br>//定义对应的消息提示 <br>var msg=new Array(4); <br>msg[0]="密码过短。"; <br>msg[1]="密码强度差。"; <br>msg[2]="密码强度良好。"; <br>msg[3]="密码强度高。"; <br>var sty=new Array(4); <br>sty[0]=-45; <br>sty[1]=-30; <br>sty[2]=-15; <br>sty[3]=0; <br>var col = new Array(4); <br>col[0] = "gray"; <br>col[1] = "#50AEDD"; <br>col[2] = "#FF8213"; <br>col[3] = "green"; <br>//设置显示效果 <br>var bImg="http://download.jz123.cn/sc/pwdlen_dSIPeEGQWxfO.gif" //一张显示用的图片 <br>var sWidth=300; <br>var sHeight=15; <br>var Bobj=document.getElementById("chkResult"); <br>Bobj.style.fontSize="12px"; <br>Bobj.style.color=col[id]; <br>Bobj.style.width=sWidth + "px"; <br>Bobj.style.height=sHeight + "px"; <br>Bobj.style.lineHeight=sHeight + "px"; <br>Bobj.style.background="url(" + bImg + ") no-repeat left " + sty[id] + "px"; <br>Bobj.style.textIndent="20px"; <br>Bobj.innerHTML="检测提示：" + msg[id]; <br>} <br>//定义检测函数,返回0/1/2/3分别代表无效/差/一般/强 <br>function getResult(s){ <br>if(s.length < 4){ <br>return 0; <br>} <br>var ls = 0; <br>if (s.match(/[a-z]/ig)){ <br>ls++; <br>} <br>if (s.match(/[0-9]/ig)){ <br>ls++; <br>} <br>if (s.match(/(.[^a-z0-9])/ig)){ <br>ls++; <br>} <br>if (s.length < 6 && ls > 0){ <br>ls--; <br>} <br>return ls <br>} <br></script>
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