jQuery(document).ready(function(){
    var $el, leftPos, newWidth,
    $mainNav = jQuery("#menu-main-menu");
    //$mainNav2 = $("#example-two");
    
    /*
        EXAMPLE ONE
    */
    if(jQuery("#menu-main-menu .current-menu-item").size() > 0) {
	    $mainNav.append("<li id='magic-line'></li>");
	    
	    var $magicLine = jQuery("#magic-line");
	    
	    $magicLine
		  .width(jQuery("#menu-main-menu .current-menu-item").width())
		  .css("left", jQuery("#menu-main-menu .current-menu-item a").position().left)
		  .data("origLeft", $magicLine.position().left)
		  .data("origWidth", $magicLine.width());
		  
	    jQuery("#menu-main-menu li").find("a").hover(function() {
		  $el = jQuery(this);
		  leftPos = $el.position().left;
		  newWidth = $el.parent().width();
		  
		  $magicLine.stop().animate({
			left: leftPos,
			width: newWidth
		  });
	    }, function() {
		  $magicLine.stop().animate({
			left: $magicLine.data("origLeft"),
			width: $magicLine.data("origWidth")
		  });    
	    });
    }
   else if(jQuery("#menu-main-menu .current-post-parent").size() > 0) {
   	$mainNav.append("<li id='magic-line'></li>");
	    
	    var $magicLine = jQuery("#magic-line");
	    
	    $magicLine
		  .width(jQuery("#menu-main-menu .current-post-parent").width())
		  .css("left", jQuery("#menu-main-menu .current-post-parent a").position().left)
		  .data("origLeft", $magicLine.position().left)
		  .data("origWidth", $magicLine.width());
		  
	    jQuery("#menu-main-menu li").find("a").hover(function() {
		  $el = jQuery(this);
		  leftPos = $el.position().left;
		  newWidth = $el.parent().width();
		  
		  $magicLine.stop().animate({
			left: leftPos,
			width: newWidth
		  });
	    }, function() {
		  $magicLine.stop().animate({
			left: $magicLine.data("origLeft"),
			width: $magicLine.data("origWidth")
		  });    
	    });
    }
    
    /*
        EXAMPLE TWO
    */
    /*
    $mainNav2.append("<li id='magic-line-two'></li>");
    
    var $magicLineTwo = $("#magic-line-two");
    
    $magicLineTwo
        .width($(".current_page_item_two").width())
        .height($mainNav2.height())
        .css("left", $(".current_page_item_two a").position().left)
        .data("origLeft", $(".current_page_item_two a").position().left)
        .data("origWidth", $magicLineTwo.width())
        .data("origColor", $(".current_page_item_two a").attr("rel"));
                
    $("#example-two li").find("a").hover(function() {
        $el = $(this);
        leftPos = $el.position().left;
        newWidth = $el.parent().width();
        $magicLineTwo.stop().animate({
            left: leftPos,
            width: newWidth,
            backgroundColor: $el.attr("rel")
        })
    }, function() {
        $magicLineTwo.stop().animate({
            left: $magicLineTwo.data("origLeft"),
            width: $magicLineTwo.data("origWidth"),
            backgroundColor: $magicLineTwo.data("origColor")
        });    
    });
    */
});