javascript is cool for making things in your browser, here is an example script to show you how you can put this on your site so that you don't have to hit the control + c on you keyboard to copy and paste the selected text in web forms.
here is a demo:

here is the code:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Select Copy Text Into Clipboard History with Javascript</title>
<!-- Begin
function copyit(theField) {
var selectedText = document.selection;
if (selectedText.type == 'Text') {
var newRange = selectedText.createRange();
theField.value = newRange.text;
} else {
alert('Alert: Select The text in the textarea then click on this button');
// End -->

<p><strong>Select Copy Text Into Clipboard History with Javascript by </strong></p>
<p><strong>1. Hight the text inside the text area below</strong></p>
<p><strong>2. Click on the form button, this will copy the text into your clipboard (basically the same as hitting control + c on your keyboard)</strong></p>
<form name="javascript">

<input onclick="copyit(this.form.text_select)" type="button" value="Click Here to Copy the Highlighted Text" name="copy_button">
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<div align="center">
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Try it on your website, you will like it

here is another way to select the content in a field with javascript: check it out

javascript select all text form button

NOTE: This will work on Internet Explorer. I tried it on Mozilla Firefox but i did not do anything. i was hoping someone can help me with firefox?