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    <p>It is quite difficult to write a cross browser, generic "get selected text" function. If you can limit your requirements to say only text selected in a page, then life is simpler. </p> <p>But if you want to be able to get text selections from anywhere (inside form controls, button labels, general text), then life is tough.</p> <p>Here's a function I wrote some time ago, it worked well enough for the application it was used in:</p> <pre><code>/* * This function returns the selected text in a document. * If no text selected, returns an empty string. * * Call on one of the following events: * * mouseup - most appropriate event * for selection by mousedown, drag to select, mouseup * may select only whitespace * * dblclick - not as appropriate as mouseup * for selection of word by double click * may select only whitespace * * Note that text can be selected in ways that do not dispatch * an event, e.g. selecting all the text in the document using: * ctrl + a * context menu -&gt; Select All * edit menu -&gt; Select All * programmatically selecting text */ function checkForSelectedText(e) { var e = e || window.event; var el = e.target || e.srcElement; var tagName = el.tagName &amp;&amp; el.tagName.toLowerCase(); var t; var d = document; // Try DOM 2 Range - for most browsers, including IE 6+ // However, doesn't get text selected inside form controls // that allow selection of text content (input type text, // textarea) if (d &amp;&amp; d.selection &amp;&amp; d.selection.createRange) { t = d.selection.createRange().text; // Otherwise try HTML5 - note that getSelection returns // a string with extra properties. This may also get // text within input and textarea } else if (d.getSelection) { t = d.getSelection(); } // If didn't get any text, see if event was inside // inupt@type=text or textarea and look for text if (t == '') { if (tagName == 'textarea' || (tagName == 'input' &amp;&amp; el.type == 'text')) { // Check selectionStart/End as otherwise if no text // selected, IE returns entire text of element if (typeof el.selectionStart == 'number' &amp;&amp; el.selectionStart != el.selectionEnd) { t = el.value.substring(el.selectionStart, el.selectionEnd) } } } return t; } </code></pre>
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    1. CONice work on all the comments. Something you don't see often enough. It is very hard sometimes to get into someone else's trail of though.
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