$(function() {

    $('div.nav-item a').each(function(){
    	//open en close submenu when navigating not on page with class "parent"
        if($(this).hasClass("parent") && !$(this).hasClass("current")){
        		
        	$(this).bind('mouseover',function(){

                if($('div#content-right-container').css('marginTop') == '0px'){
	        		$(this).next().slideDown(500);
	                $('div#content-right-container').animate({'marginTop':'+=70px'},500);
                }
                
            });


            $(this).next('div.sub-nav-items').bind('mouseleave',function(){

                if($('div#content-right-container').css('marginTop') == '70px'){
	            	$(this).slideUp(500);
	            	$('div#content-right-container').animate({'marginTop':'-=70px'},500); 
                }
                
            });
            
        }        
        //open when page with class "parent" is requested
        if($(this).hasClass("parent") && $(this).hasClass("current") ){

        	$(this).next().slideDown(500);
        	$('div#content-right-container').animate({'marginTop':'+=70px'},500); 

        }

    });

}); //end jquery