Password input box code sharing _javascript Tips

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The specific code looks like this:

function Hiddenpass (event)
{ 
var password0 = document.getElementById ("password0"); 
var password1 = document.getElementById ("Password1"); 
if (Event.keycode = =)
{ 
} 
var keycode; 
if (window.event) 
{//IE 
keycode = Event.keycode 
} else if (Event.which) 
{//Netscape/firefox/opera 
keycode = Event.which 
} 
var Keychar = String.fromCharCode (keycode); 
Password1.value = Password1.value + Keychar; 
Password1.value = password1.value.substring (0,
password0.length);} function Clearpass ()
{ 
$ ("#password0"). Val (""); 
$ ("#password1"). Val ("");
<li class= "ba" >
<label> password:</label> 
<input type= "text" id= "password0" 
onfocus= "Javascript:clearpass ();" 
Onkeyup= "This.value=this.value.replace (/./g, ' * ')" 
onkeypress= "Javascript:hiddenpass (event);" /> 
<input type= "hidden" id= "Password1" name= "Password1"/>
</li>

The above code content is small to share the password input box code, we hope to help!