密码强度检测函数（正则）

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function showImage(){ 
var imgObj=new Image(); //创建一个Image对象 
imgObj.src="http://www.beingmate.com/images/banner_chang_add.gif"; //装载Image源 
if(typeof(imgObj)=="object"){ //判断imgObj装载过后是否为对象，防止异常操作 
var width=0; 
var height=0; 
width=imgObj.width+20; //+20是因为IE方式的默认边距 
height=imgObj.height+20; 
if(width!=0&&height!=0){ 
window.open(imgObj.src,"Imagehow", "toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no,width=" +( width )+ ",height=" +( height)); 
}else{ 
setTimeout("showImage()", 100); // 判断图片是否装载完成，只有在装载完成后才能取到宽高值 
} 
}else{ 
alert("系统错误"); 
} 
} 
//showImage(); 
</SCRIPT> 
<script type="text/javascript"> 
//From BBS.51JS.COM By 网络东西 
var $ = function(v){return document.getElementById(v);} 
function isSecurity(v){ 
 if (v.length < 3) { iss.reset();return;} 
 var lv = -1; 
 if (v.match(/[a-z]/ig)){lv++;} 
 if (v.match(/[0-9]/ig)){lv++;} 
 if (v.match(/(.[^a-z0-9])/ig)){lv++;} 
 if (v.length < 6 && lv > 0){lv--;} 
 iss.reset(); 
 switch(lv) {  
 case 0: 
 iss.level0(); 
 break; 
 case 1: 
 iss.level1(); 
 break; 
 case 2: 
 iss.level2(); 
 break; 
 default: 
 iss.reset(); 
 } 
} 
var iss = { 
 color:["CC0000","FFCC33","66CC00","CCCCCC"], 
 text:["弱","中","强"], 
 width:["50","100","150","10"], 
 reset:function(){ 
 $("B").style.backgroundColor = iss.color[3]; 
 $("B").style.width = iss.width[3]; 
 $("A").innerHTML = ""; 
 }, 
 level0:function(){ 
 $("B").style.backgroundColor = iss.color[0]; 
 $("B").style.width = iss.width[0]; 
 $("A").innerHTML = "密码较弱";  
 }, 
 level1:function(){ 
 $("B").style.backgroundColor = iss.color[1]; 
 $("B").style.width = iss.width[1]; 
 $("A").innerHTML = "中";  
 }, 
 level2:function(){ 
 $("B").style.backgroundColor = iss.color[2]; 
 $("B").style.width = iss.width[2]; 
 $("A").innerHTML = "高强"; 
 } 
} 
</script> 
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<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
<title>OA登录</title> 
<style type="text/css"> 
 
</style> 
<SCRIPT> 
function showImage(){ 
var imgObj=new Image(); //创建一个Image对象 
imgObj.src="http://www.beingmate.com/images/banner_chang_add.gif"; //装载Image源 
if(typeof(imgObj)=="object"){ //判断imgObj装载过后是否为对象，防止异常操作 
var width=0; 
var height=0; 
width=imgObj.width+20; //+20是因为IE方式的默认边距 
height=imgObj.height+20; 
if(width!=0&&height!=0){ 
window.open(imgObj.src,"Imagehow", "toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no,width=" +( width )+ ",height=" +( height)); 
}else{ 
setTimeout("showImage()", 100); // 判断图片是否装载完成，只有在装载完成后才能取到宽高值 
} 
}else{ 
alert("系统错误"); 
} 
} 
//showImage(); 
</SCRIPT> 
<script type="text/javascript"> 
//From BBS.51JS.COM By 网络东西 
var $ = function(v){return document.getElementById(v);} 
function isSecurity(v){ 
 if (v.length < 3) { iss.reset();return;} 
 var lv = -1; 
 if (v.match(/[a-z]/ig)){lv++;} 
 if (v.match(/[0-9]/ig)){lv++;} 
 if (v.match(/(.[^a-z0-9])/ig)){lv++;} 
 if (v.length < 6 && lv > 0){lv--;} 
 iss.reset(); 
 switch(lv) {  
 case 0: 
 iss.level0(); 
 break; 
 case 1: 
 iss.level1(); 
 break; 
 case 2: 
 iss.level2(); 
 break; 
 default: 
 iss.reset(); 
 } 
} 
var iss = { 
 color:["CC0000","FFCC33","66CC00","CCCCCC"], 
 text:["弱","中","强"], 
 width:["50","100","150","10"], 
 reset:function(){ 
 $("B").style.backgroundColor = iss.color[3]; 
 $("B").style.width = iss.width[3]; 
 $("A").innerHTML = ""; 
 }, 
 level0:function(){ 
 $("B").style.backgroundColor = iss.color[0]; 
 $("B").style.width = iss.width[0]; 
 $("A").innerHTML = "密码较弱";  
 }, 
 level1:function(){ 
 $("B").style.backgroundColor = iss.color[1]; 
 $("B").style.width = iss.width[1]; 
 $("A").innerHTML = "中";  
 }, 
 level2:function(){ 
 $("B").style.backgroundColor = iss.color[2]; 
 $("B").style.width = iss.width[2]; 
 $("A").innerHTML = "高强"; 
 } 
} 
</script> 
<style type="text/css"> 
 
</style> 
</head>

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