Created
November 24, 2011 16:58
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stukje javascript eerstejaars
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<!DOCTYPE html> | |
<html> | |
<head> | |
<title>Naam-ding</title> | |
<script type="text/javascript"> | |
var naam = function () | |
{ | |
var geefNaam = function ( e ) | |
{ | |
var naam = document.getElementById( 'naam' ).value; | |
if ( !naam ) | |
{ | |
alert( 'Er is geen naam ingevoerd.' ); | |
return false; | |
} | |
alert( 'De ingevoerde naam is:\n' + naam ); | |
} | |
return function ( element , direction ) | |
{ | |
if ( !element ) | |
return false; | |
element = document.getElementById( element ); | |
if ( !element ) | |
return false; | |
/* | |
<!-- beforebegin --><p><!-- afterbegin -->foo<!-- | |
beforeend --></p><!-- afterend --> | |
*/ | |
if ( | |
direction !== 'beforebegin' | |
&& direction !== 'afterbegin' | |
&& direction !== 'beforeend' | |
&& direction !== 'afterend' | |
) | |
direction = 'beforebegin'; | |
element.insertAdjacentHTML( direction , '' + | |
'\n' + ' <h1>RekenMachine</h1>' + | |
'\n' + ' <form action="#" method="post">' + | |
'\n' + ' <dl>' + | |
'\n' + ' <dt>' + | |
'\n' + ' <label for="naam">Naam:</label>' + | |
'\n' + ' </dt>' + | |
'\n' + ' <dd>' + | |
'\n' + ' <input type="text" id="naam" />' + | |
'\n' + ' </dd>' + | |
'\n' + ' </dl>' + | |
'\n' + ' <button id="knopje">laat zien</button>' + | |
'\n' + ' </form>' + | |
'\n' + '' | |
); | |
element = document.getElementById( 'knopje' ); | |
if ( !element ) | |
return false; | |
element.addEventListener( | |
'click' , | |
geefNaam | |
); | |
}; | |
}(); | |
</script> | |
<style type="text/css"> | |
form | |
{ | |
background-color : purple; | |
color : yellow; | |
padding : 0.5ex 2ex; | |
} | |
</style> | |
</head> | |
<body> | |
<script id="n" type="text/javascript"> | |
naam( 'n' ); | |
</script> | |
</body> | |
</html> |
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