Javascript Runtime Error:object doesn't support property or method 'stickyfooterbar'

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Javascript

Hi
I am new to this , during run time i am getting object doesn't support property or method 'sticky footerbar'.

Please suggest me how to fix this issue, it is very helpful to me

in header of the HTML page added the

<script type="text/javascript" src="jquery-1.6.2.js"></script>
    <script type="text/javascript" src="jquery-1.11.1.min.js"></script>
    <script type="text/javascript" src="jquery.stickyfooterbar.js"></script>

in footer section added the below code

<footer>
			<div id="stickyfooter">
				<div class="intended">
					<div id="stickyline">
						<h2>Get it! Scroll to the bottom</h2>
					</div>
					<ul>
						<li>
							<a href="https://github.com/defname/sticky-footer-bar">Visit the project on GitHub</a>
						</li>
						<li>
							or <a href="https://github.com/defname/sticky-footer-bar/archive/master.zip">download
							the repository as ZIP</a>
						</li>
					</ul>
				</div>
			</div>
			<p id="P1">
				© 2014 Bodo Akdeniz
			</p>
		</footer>


<script type="text/javascript" language="javascript">
        $(document).ready(function () {
            $('#stickyfooter').stickyfooterbar('#stickyline');
        });
		</script>