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JavaScript Practical Skills Collection (3)

Source: Internet
Author: User
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Skills

21. Make pop-up windows always on top:

<body onblur= "This.focus ();" >

22. Do not scroll bar?

Let the vertical bar not:
<body style= "Overflow:scroll;overflow-y:hidden" >
</body>
Let the cross bar not:
<body style= "Overflow:scroll;overflow-x:hidden" >
</body>
Two of them removed? It's even simpler.
<body scroll= "No" >
</body>

23. How to remove the picture link clicked, the dotted line around the picture?

<a href= "#" ></a>

24. e-mail processing submitting form

<form name= "Form1" method= "Post" action= "mailto:****@***.com" enctype= "Text/plain" >
<input type=submit>
</form>

25. How do I write in the code that refreshes the parent window in the Open child window?

Window.opener.location.reload ()

26. How to set the size of the open page

<body >
The location where the page opens <body >

27. How to add a background picture that is not full on the page, pull the page when the background image does not move

<STYLE>
Body
{Background-image:url (logo.gif); background-repeat:no-repeat;
Background-position:center;background-attachment:fixed}
</STYLE>

28. Check whether a string of strings is all composed of numbers

<script language= "Javascript" ><!--
function Checknum (str) {return Str.match (//d/) ==null}
Alert (Checknum ("1232142141"))
Alert (Checknum ("123214214A1"))
--></script>

29. Get the size of a window

Document.body.clientWidth; Document.body.clientHeight

30. How to judge whether it is a character

if (/[^/x00-/xff]/g.test (s)) alert ("contains Chinese characters");
else alert ("All characters");



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