【 tulaoshi.com - Web开发 】
                             
                              1 script type="text/javascript"
  2 var agt = navigator.userAgent.toLowerCase();
  3 var is_op = (agt.indexOf("opera") != -1);
  4 var is_ie = (agt.indexOf("msie") != -1) && document.all && !is_op;
  5 var is_ie5 = (agt.indexOf("msie 5") != -1) && document.all && !is_op;
  6 
  7 function CreateXmlHttpReq(handler) {
  8   var xmlhttp = null;
  9   if (is_ie) {
 10     var control = (is_ie5) ? "Microsoft.XMLHTTP" : "Msxml2.XMLHTTP";
 11     try {
 12       xmlhttp = new ActiveXObject(control);
 13       xmlhttp.onreadystatechange = handler;
 14     } catch (ex) {
 15       alert("You need to enable active scripting and activeX controls");  
 16     }
 17 
 18   } else {
 19     xmlhttp = new XMLHttpRequest();
 20     xmlhttp.onload = handler;
 21     xmlhttp.onerror = handler;
 22   }
 23   return xmlhttp;
 24 }
 25 
 26 
 27 function XmlHttpPOST(xmlhttp, url, data) {
 28   try {
 29     xmlhttp.open("POST", url, true);
 30     xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
 31     xmlhttp.send(data);
 32 
 33   } catch (ex) {
 34     // do nothing
 35   }
 36 }
 37 
 38 
 39 var myxmlhttp;
 40 ratingMsgs = new Array(6);
 41 ratingMsgColors = new Array(6);
 42 barColors = new Array(6);
 43 
 44 ratingMsgs[0] = "太短";
 45 ratingMsgs[1] = "弱";
 46 ratingMsgs[2] = "一般";
 47 ratingMsgs[3] = "很好";
 48 ratingMsgs[4] = "极佳";
 49 ratingMsgs[5] = "未评级";
 50 
 51 ratingMsgColors[0] = "#676767";
 52 ratingMsgColors[1] = "#aa0033";
 53 ratingMsgColors[2] = "#f5ac00";
 54 ratingMsgColors[3] = "#6699cc";
 55 ratingMsgColors[4] = "#008000";
 56 ratingMsgColors[5] = "#676767";
 57 
 58 barColors[0] = "#dddddd";
 59 barColors[1] = "#aa0033";
 60 barColors[2] = "#ffcc33";
 61 barColors[3] = "#6699cc";
 62 barColors[4] = "#008000";
 63 barColors[5] = "#676767";
 64 65 function CreateRatePasswdReq () 
 66 {
 67 var passwd = getElement(''Passwd'').value;
 68 var email = getElement(''Email'').value;
 69 var lastname = getElement(''LastName'').value;
 70 var firstname = getElement(''FirstName'').value;
 71 var min_passwd_len = 6;
 72 
 73 
 74 if (passwd.length  min_passwd_len)  
 75 {
 76   if (passwd.length  0) 
 77   {
 78     DrawBar(0);
 79   } 
 80   else 
 81   {
 82     ResetBar();
 83   }
 84 }
 85 else 
 86 {
 87     passwd = escape(passwd);
 88     var params = ''Passwd=''+passwd+''&Email=''+email+''&FirstName=''+firstname+''&LastName=''+lastname;
 89     myxmlhttp = CreateXmlHttpReq(RatePasswdXmlHttpHandler);
 90     XmlHttpPOST(myxmlhttp, "https://www.google.com/accounts/RatePassword", params);
 91 }
 92 }
 93 
 94 function getElement(name) 
 95 {
 96   if (document.all) 
 97   {
 98       return document.all(name);
 99   }
100   return document.getElementById(name);
101 }
102 
103 function RatePasswdXmlHttpHandler() 
104 { // Can''t check status since safari doesn''t support it
105   if (myxmlhttp.readyState != 4) 
106   {
107   return;
108   }
109   rating = parseInt(myxmlhttp.responseText);
110   DrawBar(rating);
111 }
112 
113 function DrawBar(rating) 
114 {
115 var posbar = getElement(''posBar'');
116 var negbar = getElement(''negBar'');
117 var passwdRating = getElement(''passwdRating'');
118 var barLength = getElement(''passwdBar'').width;
119 
120 if (rating = 0 && rating = 4) 
121 {       //We successfully got a rating
122     posbar.style.width = barLength / 4 * rating + "px";
123     negbar.style.width = barLength / 4 * (4 - rating) + "px";
124 }
125 else 
126 {
127     posbar.style.width = "0px";
128     negbar.style.width = barLength + "px";
129     rating = 5; // Not rated Rating130 }
131 posbar.style.background = barColors[rating]
132 passwdRating.innerHTML = "font color=''" + ratingMsgColors[rating] +"''" + ratingMsgs[rating] + "/font";
133 }
134 
135 
136   //Resets the password strength bar back to its initial state without any message showing.
137   function ResetBar() 
138   {
139     var posbar = getElement(''posBar'');
140     var negbar = getElement(''negBar'');
141     var passwdRating = getElement(''passwdRating'');
142     var barLength = getElement(''passwdBar'').width;
143 
144     posbar.style.width = "0px";
145     negbar.style.width = barLength + "px";
146     passwdRating.innerHTML = "";
147   }
148 
149 /script
150 
151 table width="60%"  border="0"
152     tr
153         td width="30%"
154             input type="hidden" value="" id="FirstName" size="30"
155             input type="hidden" value="" id="LastName" size="30"
156             input type="hidden" id="Email" value="" size="30"
157             input type="password" id="Passwd" value="" onkeyup="CreateRatePasswdReq()" size="30"
158         /td
159         td width="70%"
160             table cellpadding="0" cellspacing="0" border="0"
161                 tr
162                     td width="200" id="passwdBar"
163                         table cellpadding="0" cellspacing="0" border="0"
164                             tr
165                                 td nowrap valign="top"  height="15px"font color="#808080" size="-1" face="Arial, sans-serif"div id="passwdRating"/div/font/td
166                             /tr
167                             tr
168                                 td height="3px"/td
169                             /tr
170                             tr
171                                 td colspan="2"
172                                     table cellpadding="0" bgcolor="#ffffff" cellspacing="0" border="0" width="200"
173                                         tr
174                                             td width="0%" id="posBar" bgcolor="#e0e0e0" height="4px"/td
175                                             td width="100%" id="negBar" bgcolor="#e0e0e0" height="4px"/td
176                                         /tr
177                                     /table
178                                 /td
179                             /tr
180                         /table
181                     /td
182                 /tr
183             /table
184         /td
185     /tr
186 /table
187