Enable an end user to hide the Quicklaunch from view and free up some additional space if you have a lower resolution. download jquery-1.6.2.min.js and copy this snippets on Master page.
<script type="text/javascript" src="/Shared%20Documents/jquery-1.6.2.min.js"></script>
<script type="text/javascript">
jQuery(function($) {
var CookieName = "QuickLaunchHidden";
var MainArea = $('.s4-ca');
var MainAreaLeftMargin = $(MainArea).css('margin-left');
var NoLeftMargin = "0px";
var LeftArea = $('#s4-leftpanel');
var Collapse = "/_layouts/images/mewa_leftPage.gif";
var Expand = "/_layouts/images/mewa_rightPage.gif";
$(MainArea).prepend('<a class=\'min\' style=\'float:left; position:absolute; top:0px; left:0px;\' title=\'Hide \\ Show Quick Launch\'><img src=\''+
Collapse +'\'/></a>');
$('.min').click(function(){
//Toggle the Left Panel to hide it
$(LeftArea).toggle();
$(LeftArea).is(":visible") ? MainArea.css('margin-left',MainAreaLeftMargin ) : MainArea.css('margin-left',NoLeftMargin);
var img = $(this).children();
$(LeftArea).is(":visible") ? img.attr('src',Collapse) : img.attr('src',Expand );
});
});
</script>
For more information:
http://www.lifeinsharepoint.co.uk/2012/06/19/quick-tip-jquery-collapsable-quicklaunch-sharepoint-2010/
