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  This is the useful computer tip, it will ease your work if you have the same problem.



  1.Keyboard shortcut:
[win+D], Minimize all application to taskbar, so no GUI on your desktop.
[Alt+Tab], switch between different applications to the desktop.
[Alt+Space], system menu.
In dos command, press [F7], [F8], [F9] will let you choose your command history, can press [up] key to the previous key; and in xp operation system, if you have typed several of the beginning char, and it's unique, you can press [Tab] to finish it.

  2.Useful command:
  You need run these commands in DOS mode, Use "[Start]-->[Run...]" and input "cmd" to enter DOS mode.
  tasklist: will show all of the process run in the computer, it's useful when you want to find suspious process.
  shutdown: will shut down computer, but it's only can be used in xp system, if you want, can copy it to old os version also.

  3.IE canot run for BHO reason:
  Yesterday my IE can't run, and my windows explore can't open folder also, when i click any folder, the windows explore will restart, but can never start IE at all, but still can use my MSN, very suprising. this is the steps i have made to fix the problem.
  I run "Process explore" to view all of the running processes, there're two suspious process, svchost.exe and internat.exe, but whenever i shut down these two prcesses, after several seconds the will appear again, thus i run hijackthis to check, but there're no useful information at all, but I  found four suspious dll using "Process Explore" because they attach to any process, can't remove them in normal mode.
  So I go to safe mode, but it's OK, can open any folder and can run IE also, but can't remove these four dlls, so i go to my Linux OS, in Linux I can visit my C driver in windows, it's seted by me long days ago, ought to use mount to make it work, but forgot how to visit D dirver, so can't remove them either in Linux OS.
  Return to normal mode again, In computer management, i shut down all of the services, but still can't fix it, besides that, i can't go to Internent, can't go to my MSN, can't ping at all, so i reenable these services, but when i use MMC to do that kind of work, it show "Plug and Play sevice hasn't run", so i can't make these services run, stop, pause, resume ..., i feel very depressed at that moment.
  So i go out to buy a new windows 2000 server os, after fifteen minutes i arrive the software shop, but they told me there's no windows 2000, only windows xp, and the same price, so i bought noghting and return back to office, take me fifteen minutes again.
  When arrive office, an idea suddenly comes to me, why not use registry, so i open regedit, and find all of the services in HKEY_LOCAL_MACHINE->SYSTEM->CurrentControlSet->Services, you can set [Start] to 2 to make it automatically run when windows startup, after change that, we can right click the service item in MMC to start it; or can use "net start xxx", i'm very happy to see i can start my service again, and i think perhaps i can use regisry to fix my IE also, and i remember IE problems are often related BHO, so i find BHO through the entry: HKEY_LOCAL_MACHINE->SOFTWARE->Microsoft->Windows->CurrentVersion->Explorer->Browser Help Object, i found there're four items, so delete them again, and run my explorer, an exciting result, i'm very happy to see it, because I fix that problem almost manulay, so want to tell anyone else here.
   2007/04/19, by kohl yang, first posted on EffEnj software's website, can reach it through www.websamba.com/ikohl, this article can be freely distributed, but don't cut any information.

  4.Webpage design(about javascript, css, frameset):
  Add javascript to your web page: in your html file's head tag, insert this code:
<script language="javascript">
function f1()
{
  document.write("hello world<br>");
}
</script>
and in the body of the html, call it like this one:
<script language="javascript">
  f1();
</script>
you can only use a very simple way to call javascript function, like this:
<form>
<input type="button" onclick="alert(hello world);">
</form>

  Use css in your web page: there're five ways to add css
First: within your tag add 'style="color:red"'
Second: in your head tag, insert this:
<style>
  body{color:red}
<style>
thus all of the text within the body will be red
Third: in your head tag, insert this: <style>
  .mystyle{color:red}
<style>
and in the tag where you want to apply the style, insert this 'class="mystle"'.
Fourth: change ".mystyle" to "#mystyle", and 'class="mystyle"' to 'id="mystle"'.
Fifth: define the style in a sepearte .css file, and include it in this file.

  Use frameset in your web page: insert this within your head tag, you will see a parent page which has two child page, one occupies 10% of the height, one for 90%.
<frameset rows="10%,90%">
  <frame src="s1.htm">
  <frame src="s2.htm">
</frameset>
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