// JScript 檔

//密码强度检测结束
        function PasswordStrength(showed){ 
            this.showed = (typeof(showed) == "boolean")?showed:true;
            this.styles = new Array(); 
            this.styles[0] = {backgroundColor:"#EBEBEB",borderLeft:"solid 1px #FFFFFF",borderRight:"solid 1px #BEBEBE",borderBottom:"solid 1px #BEBEBE"}; 
            this.styles[1] = {backgroundColor:"#FF4545",borderLeft:"solid 1px #FFFFFF",borderRight:"solid 1px #BB2B2B",borderBottom:"solid 1px #BB2B2B"};
            this.styles[2] = {backgroundColor:"#FFD35E",borderLeft:"solid 1px #FFFFFF",borderRight:"solid 1px #E9AE10",borderBottom:"solid 1px #E9AE10"};
            this.styles[3] = {backgroundColor:"#95EB81",borderLeft:"solid 1px #FFFFFF",borderRight:"solid 1px #3BBC1B",borderBottom:"solid 1px #3BBC1B"};
            this.labels= ["弱","中","強"];
            this.divName = "pwd_div_"+Math.ceil(Math.random()*100000);
            this.minLen = 1;
            this.width = "150px";
            this.height = "16px";
            this.content = "";
            this.selectedIndex = 0;
            this.init(); 
        }
    
        PasswordStrength.prototype.init = function(){
            var s = '<table cellpadding="0" id="'+this.divName+'_table" cellspacing="0" style="width:'+this.width+';height:'+this.height+';">';
            s += '<tr>';
            for(var i=0;i<3;i++){
                s += '<td id="'+this.divName+'_td_'+i+'" width="33%" align="center"><span style="font-size:1px"> </span><span id="'+this.divName+'_label_'+i+'" style="display:none;font-family: Courier New, Courier, mono;font-size: 12px;color: #000000;">'+this.labels[i]+'</span></td>';
            } 
            s += '</tr>';
            s += '</table>';
            this.content = s;
            if(this.showed){
                document.write(s);
                this.copyToStyle(this.selectedIndex);
            } 
        }
    
        PasswordStrength.prototype.copyToObject = function(o1,o2){
            for(var i in o1){
                o2[i] = o1[i];
            }
        }
    
        PasswordStrength.prototype.copyToStyle = function(id){
            this.selectedIndex = id;
            for(var i=0;i<3;i++){
                if(i == id-1){
                    this.$(this.divName+"_label_"+i).style.display = "inline";
                }else{
                    this.$(this.divName+"_label_"+i).style.display = "none";
                }
            }
            for(var i=0;i<id;i++){
               this.copyToObject(this.styles[id],this.$(this.divName+"_td_"+i).style);   
            }
            for(;i<3;i++){
               this.copyToObject(this.styles[0],this.$(this.divName+"_td_"+i).style);
            }
        }
        
        PasswordStrength.prototype.$ = function(s){
            return document.getElementById(s);
        }
    
        PasswordStrength.prototype.setSize = function(w,h){
            this.width = w;
            this.height = h;
        }
    
        PasswordStrength.prototype.setMinLength = function(n){
            if(isNaN(n)){
                return ;
            }
            n = Number(n);
            
            if(n>1){
                this.minLength = n;
            }
        }
    
        PasswordStrength.prototype.setStyles = function(){
            if(arguments.length == 0){
                return ;
            }
    
            for(var i=0;i<arguments.length && i < 4;i++){
                this.styles[i] = arguments[i];
            }
            this.copyToStyle(this.selectedIndex);
        }
    
        PasswordStrength.prototype.write = function(s){
            if(this.showed){
                return ;
            }
            var n = (s == 'string') ? this.$(s) : s;
            
            if(typeof(n) != "object"){
                return ;
            }
            n.innerHTML = this.content;
            this.copyToStyle(this.selectedIndex);
        }
    
        PasswordStrength.prototype.update = function(s){
            if(s.length < this.minLen){
                this.copyToStyle(0);
                return;
            }
        
            var ls = -1;
    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--;
    }
       switch(ls) { 
        case 0:
         this.copyToStyle(1);
         break;
        case 1:
         this.copyToStyle(2);
         break;
        case 2:
         this.copyToStyle(3);
         break;
        default:
         this.copyToStyle(0);
       }
    }
//强度检测结束

/* 使用方法:
    Html 插入
    <script type="text/javascript">
       var ps = new PasswordStrength();
       ps.setSize("200","20");
       ps.setMinLength(5);
    </script>
   
   密碼文字控制項 : onKeyUp="ps.update(this.value);"
*/