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    How can I hide my dropdown menu on print?

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Q: Can I use javascript to get the object (getElementByID). If not how do I hide my dropdown menu on print?

A: You can add a new button to print your page and call onClick event, so you should write:
<body ....
onClick="document.getElementById('dm0m0').style.visibility='hidden'; window.print();">
...
</body>
Or you can use the same javascript code from your menu item.

For example:
var menuItems = [
["Print", "javascript:document.getElementById('dm0m0').style.visibility='hidden';
window.print();", icon1, icon2],
];
But if you want to hide the menu when your customers push "File/Print" you should write so:
You must create two functions, for example:

function myprint()
{ document.getElementById('dm0m0').style.visibility='hidden';
window.print();
}
function myprint2()
{ document.getElementById('dm0m0').style.visibility='visible';
window.print();
}
You should add this functions into your code.

And then you must write so:

window.onbeforeprint = myprint;
window.onafterprint = myprint2;





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