Yes, it jQuery.noConflict's a good start, but since the “other library” you are using, jQuery is also likely to have complications.
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, jQuery, . , ( ).
<script type="text/javascript">
var $132 = $;
</script>
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.pack.js"></script>
<script type="text/javascript">
var $164 = $, jQuery164 = $;
$ = jQuery = $132;
console.log("v1.3.2: ", $().jquery, jQuery().jquery)
console.log("v1.6.4: ", $164().jquery, jQuery164().jquery)
$('div')
$164('div')
</script>
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, jquery-latest.pack.js, -. , - jQuery . , , . , , , .