User:Mr. Stradivarius/chessboardfix.js

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Documentation for this user script can be added at User:Mr. Stradivarius/chessboardfix.

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var myContent = document.getElementsByName('wpTextbox1')[0];

function replaceSelection(replace) {
	// Replace currently selected text with the string s.
	var len = myContent.value.length;
	var start = myContent.selectionStart;
	var end = myContent.selectionEnd;
	var sel = myContent.value.substring(start, end);

	if ( typeof( replace ) == 'function' ) {
		replace = replace( sel );
	}

	myContent.value = textarea.value.substring(0, start) + replace + textarea.value.substring(end, len);
}

function wpChessboardFix() {
	replaceSelection( 'foo' );
}

function TTscriptButton() {
  addPortletLink('p-tb','javascript:wpChessboardFix()','Fix chessboards','t-chessboardfix');
}

if (wgNamespaceNumber != -1 && myContent) {
	addOnloadHook(TTscriptButton);
}