(function($){
$.fn.shortPass='Too short';
$.fn.badPass='Weak';
$.fn.goodPass='Good';
$.fn.strongPass='Strong';
$.fn.samePassword='Username and Password identical.';
$.fn.resultStyle="";
$.fn.passStrength=function(options){
var defaults={
shortPass:"shortPass",
badPass:"badPass",
goodPass:"goodPass",
strongPass:"strongPass",
baseStyle:"testresult",
userid:"",
messageloc:1};
var opts=$.extend(defaults,options);
return this.each(function(){
var obj=$(this);
$(obj).unbind().keyup(function()
{
var results=$.fn.teststrength($(this).val(),$(opts.userid).val(),opts);
if(opts.messageloc===1)
{
$(this).next("."+ opts.baseStyle).remove();
$(this).after("<span class=\""+opts.baseStyle+"\"><span></span></span>");
$(this).next("."+ opts.baseStyle).addClass($(this).resultStyle).find("span").text(results);}
else
{
$(this).prev("."+ opts.baseStyle).remove();
$(this).before("<span class=\""+opts.baseStyle+"\"><span></span></span>");
$(this).prev("."+ opts.baseStyle).addClass($(this).resultStyle).find("span").text(results);}});
$.fn.teststrength=function(password,username,option){
var score=0;
if(password.length<4){this.resultStyle=option.shortPass;return $(this).shortPass;}
if(password.toLowerCase()==username.toLowerCase()){this.resultStyle=option.badPass;return $(this).samePassword;}
score +=password.length*4;
score +=($.fn.checkRepetition(1,password).length - password.length)*1;
score +=($.fn.checkRepetition(2,password).length - password.length)*1;
score +=($.fn.checkRepetition(3,password).length - password.length)*1;
score +=($.fn.checkRepetition(4,password).length - password.length)*1;
if(password.match(/(.*[0-9].*[0-9].*[0-9])/)){score +=5;}
if(password.match(/(.*[!,@,#,$,%,^,&,*,?,_,~].*[!,@,#,$,%,^,&,*,?,_,~])/)){score +=5;}
if(password.match(/([a-z].*[A-Z])|([A-Z].*[a-z])/)){score +=10;}
if(password.match(/([a-zA-Z])/)&&password.match(/([0-9])/)){score +=15;}
if(password.match(/([!,@,#,$,%,^,&,*,?,_,~])/)&&password.match(/([0-9])/)){score +=15;}
if(password.match(/([!,@,#,$,%,^,&,*,?,_,~])/)&&password.match(/([a-zA-Z])/)){score +=15;}
if(password.match(/^\w+$/)||password.match(/^\d+$/)){score -=10;}
if(score<0){score=0;}
if(score>100){score=100;}
if(score<34){this.resultStyle=option.badPass;return $(this).badPass;}
if(score<68){this.resultStyle=option.goodPass;return $(this).goodPass;}
this.resultStyle=option.strongPass;
return $(this).strongPass;};});};})(jQuery);
$.fn.checkRepetition=function(pLen,str){
var res="";
for(var i=0;i<str.length;i++)
{
var repeated=true;
for(var j=0;j<pLen&&(j+i+pLen)<str.length;j++){
repeated=repeated&&(str.charAt(j+i)==str.charAt(j+i+pLen));}
if(j<pLen){repeated=false;}
if(repeated){
i+=pLen-1;
repeated=false;}
else{
res+=str.charAt(i);}}
return res;};