JS Small knowledge

1     Window Event 2     window.onload=function() {Alert ("page creation");}; 3         window.onunload=function() {Alert ("page unloading");}; 4         Window.onbeforedeactivate =function() {Alert ("page unloaded")};

Timing

1window.status= "xxxxx"2         varnow =NewDate (). tolocalestring ();3window.status=Now ;4 5         functionshowTime ()6         {7             varnow=NewDate (). tolocalestring ();8window.status=Now ;9             //window.document.write (window.status+ "<br/>");TenWindow.document.getElementById ("Time"). innertext=Window.status; One  A         } -         //Window.setinterval ("ShowTime ()", +); -  the         //window.location.href= "Http://127.0.0.1:8080/bbs"; -          -         varSize=window.history.length;//The browser's History bar, which stores the content of the Web page that the browser window has visited - window.document.write (size); +          -         //Open a new window +         varNewwindow=window.open ("function.html"); A          atNewwindow.close ();

Trigger event, whether the form submission

1<form name= "register" action= "Http://127.0.0.1:8080/bbs" method= "POST" onsubmit= "return Checkregister ()" >2<input type= "text" name= "username"/>3<input type= "Submit" value= "register"/>4</form>5 6<form action= "#" method= "POST" onsubmit= "return Checklogin ()" >7<input type= "text" name= "username"/>8<input type= "Submit" value= "Login"/>9</form>Ten  One<script type= "Text/javascript" > A         functionCheckregister () -         { -             varName=Window.document.register.username.value; the alert (name); -             return false; -         } -         functionChecklogin () +         { -             varName=window.document.forms[1].username.value; + alert (name); A             return false; at         } -</script>

Open a new window

1     <script type= "Text/javascript" >23         4         // Open new window 5          var newwindow=window.open ("function.html"); 6         7         newwindow.close (); 8     </script>