Sharepoint Down Arrow Parent Link Hack

$(document).ready(function() {
	var searchTerm = window.location.search.substring(4);
	if (searchTerm!="")
		$('#content').highlight(searchTerm);
 
	$('a[href^="http://purl.bms.com"]').attr("target","_blank");
 
 
	$('.left-navheader a').click(function(e) {
		// disable default functionality, if there's expand/contract arrow (indicating sub-pages)
		if ($(this).parent().next().is('.left-navheader-contract, .left-navheader-expand'))
			e.preventDefault();
 
		/*
		ID of the arrow image - ctl00_PlaceHolderLeftNavBar_idELPLeftNavigationUserControl_imgTD_4df9ee39-e0e4-4be0-9d12-62ff1a8d6a421
		ID of the subnav DIV  - ctl00_PlaceHolderLeftNavBar_idELPLeftNavigationUserControl_divNavigateCtrl_4df9ee39-e0e4-4be0-9d12-62ff1a8d6a421
		*/
 
		// set cookie
		// - find ID of sibling ... i.e. the arrow image
		var fullImgID = $(this).parent().next().attr('id');
		// - remove the prefix to find the part of the id we need ...
		var imgID = fullImgID.replace('ctl00_PlaceHolderLeftNavBar_idELPLeftNavigationUserControl_','');
		// get just the unique part of the ID that's common to both the IMG and DIV
		var navID = imgID.replace('imgTD_','');
		// - figure out the Subnav Div ID minus the prefix - since this is used as the cookie name, etc...
		var divID = 'divNavigateCtrl_'+navID;
		// figure out the ID of the div to toggle
		var fullSubnavID = 'ctl00_PlaceHolderLeftNavBar_idELPLeftNavigationUserControl_'+divID;
		// - set it, using plugin
		/*
		if ($(fullSubnavID).css('display')=="block") {
			$('#'+fullSubnavID).hide();
			$.cookie(divID,"none", { path: '/'});
		}
		else {
			$('#'+fullSubnavID).show();
			$.cookie(divID,"block", { path: '/'});
		}
		*/
 
		ShowHide(divID,imgID);	
 
	});
 
});