jQuery click OR hover mega dropdown menu

gistfile1.js

	// Navigation
	// --------------------------------
	
	var navType = 'hover';
	var navLinks = $("nav > ul > li > a");
	var navDropdown = $("nav div");
	var nestedLists = $("nav > ul > li > ul");
	
	// Add ATTRs to links
	var counter = 1;
	$(navLinks).each(function(){
		$(this).attr("link", "menu-"+ counter +"");
		counter++;
	});
	// Add ATTRs to lists
	var counter = 1;
	$(nestedLists).each(function(){
		$(this).attr("link", "menu-"+ counter +"");
		counter++;
	});
	
	// Do it
	// --------------------------------
	if (navType=='click') {
		// Click version
		// --------------------------------
		$(navLinks).click(
			function(){
				// Get shown <ul> in <div>
				shownList = $(navDropdown).find('> ul');
				shownId = shownList.attr("link");
				shownLi = $("a[link="+shownId+"]").parent();
				// Test for shown or not
				if($(shownList).length==0) {
					// List not shown
					showingList=0;
				}
				else if($(shownList).length>0) {
					// List shown
					showingList=1;
				}
				// Move shown list back
				$(shownList).appendTo(shownLi);
				// Get the target link
				targetId = $(this).attr("link");
				// Get target <li>
				targetLi = $(this).parent();
				// Get target <ul> in <li>
				targetList = $("ul[link="+targetId+"]");
				// See if there are sub pages to show
				if($(targetList).length==0) {
					doNothing = 1;
				}
				else {
					doNothing = 0;
				}
				// If there are sub pages to show
				if(doNothing==0) {
					// List out, move down
					if(showingList==0) {
						$(targetList).appendTo(navDropdown);
						$(navDropdown).show();
					}
					// Toggle closed
					else if (showingList==1 && shownId==targetId) {
						$(navDropdown).hide();
					}
					// Replacement list out
					else if (showingList==1 && shownId!=targetId) {
						$(targetList).appendTo(navDropdown);
					}
					return false;
				}
				else {
					$(navDropdown).hide();
				} 
			}
		);
	}
	else {
		// Hover version
		// --------------------------------
		// Set hide function
	    var isMousedOver;
	    var hideDropdown = function(a) {
	            setTimeout( function() {
	                if (isMousedOver) return;
	                // Hide the dropdown
	                //$(navDropdown).slideUp("medium");
	                $(navDropdown).hide();
					// Get shown <ul> in <div>
					shownList = $(navDropdown).find('> ul');
					shownId = shownList.attr("link");
					shownLi = $("a[link="+shownId+"]").parent();
					// Move shown list back
					$(shownList).appendTo(shownLi);
	            }, 50);
	    }
	    $(navLinks).hover(
	        function(){
				// Get shown <ul> in <div>
				shownList = $(navDropdown).find('> ul');
				shownId = shownList.attr("link");
				shownLi = $("a[link="+shownId+"]").parent();
				// Test for shown or not
				if($(shownList).length==0) {
					// List not shown
					showingList=0;
				}
				else if($(shownList).length>0) {
					// List shown
					showingList=1;
				}
				// Get the target link
				targetId = $(this).attr("link");
				// Get target <li>
				targetLi = $(this).parent();
				// Get target <ul> in <li>
				targetList = $("ul[link="+targetId+"]");
				// See if there are sub pages to show
				if($(targetList).length==0) {
					doNothing = 1;
				}
				else {
					doNothing = 0;
				}
				// If we roll back to the same button
				if(shownId==targetId) {
			    	isMousedOver = true;
				}
				else {
					// Move shown list back
					$(shownList).appendTo(shownLi);
				}
				// If there are sub pages to show
				if(doNothing==0) {
					// List out, move down
					if(showingList==0) {
						// Stop the dropdown, show the dropdown
			            //$(navDropdown).stop(true,true).slideDown("medium");
			            $(navDropdown).stop(true,true).show();
			            // Move target list out
						$(targetList).appendTo(navDropdown);
						// Call hide function 
			            isMousedOver = true;
			            var that = this;
			            $(navDropdown).data("mouseoutfn", function() { hideDropdown(that) });
					}
					// Replacement list out
					else if (showingList==1 && shownId!=targetId) {
						// Stop the dropdown
						$(navDropdown).stop(true,true);
						// Move target list out
						$(targetList).appendTo(navDropdown);
						// Call hide function 
			            isMousedOver = true;
			            var that = this;
			            $(navDropdown).data("mouseoutfn", function() { hideDropdown(that) });
					}
				}
				else {
					// Hide dropdown instantly
					$(navDropdown).hide();
				}
	        },
	        function(){
	        	// On roll-out
	        	if(doNothing==0) {
		            isMousedOver = false;
		            hideDropdown(this);
	            }
	        }
	    );
	    // Hover over dropdown
	    $(navDropdown).hover(
	        function() {
	            isMousedOver = true;
	        },
	        function() {
	            isMousedOver = false;
	            $(this).data("mouseoutfn")();
	        }
	    );
	}