JS modifies the type attribute of input some restrictions. The INPUT element can modify its value before it has been inserted into the document stream, and is ok under IE and ff. However, if input already exists on the page, its type attribute is read-only under IE and cannot be modified. Read-write properties are still available under FF.
Today encountered a problem, the input box has the default value "password", but when the focus, "password" will be removed, the input directly into the "* * *" password type. Obviously, at the beginning, the type of input was text, which later became the password type. The intuitive idea is to use JS to modify the type of input. But IE is not feasible, so can only change the train of thought, write two input, a text type, a password type, divided to monitor onfocus and onblur events. As follows:
Note: The script snippet is written in HTML
Copy Code code as follows:
<! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01//en" "HTTP://WWW.W3.ORG/TR/HTML4/STRICT.DTD" >
<meta http-equiv= "Content-type" content= "text/html; Charset=utf-8 "/>
<title> when making </title>
<style type= "Text/css" >
</style>
<body>
<input name= "" type= "text" value= "password" class= "inputtext_1" id= "TX" style= "width:100px;"/>
<input name= "type=" password "style=" display:none;width:100px; "id=" pwd "/>"
<script type= "Text/javascript" >
var tx = document.getElementById ("TX"), PWD = document.getElementById ("pwd");
Tx.onfocus = function () {
if (this.value!= "password") return;
This.style.display = "None";
Pwd.style.display = "";
Pwd.value = "";
Pwd.focus ();
}
Pwd.onblur = function () {
if (This.value!= "") return;
This.style.display = "None";
Tx.style.display = "";
Tx.value = "password";
}
</script>
</body>
