text: var value = 0;
  $( document ).ready(function() {
  	var button = $("div.header");
      console.log( "ready!" );
  	
  	$(document).on('click','.nav_hamburger',function(){
  		
  		toggleMenu();
  		
  	});
  	
  	
  
  	$(".nav_menu_item[href='#well']").click(function(event){
  		//event.preventDefault();
  		var page = $(this).attr("href");
  		console.log(page);
  		//stopper = 1;
  		//$("#canvas").fadeOut();
  		toggleMenu();
  		
  	});
  
  	$(".nav_menu_item[href='#gauss']").click(function(event){
  		//event.preventDefault();
  		
  		
  		if(stopper != 0){
  			var page = $(this).attr("href");
  			console.log(page);
  			//$("#canvas").fadeIn();
  			stopper = 0;
  			toggleMenu();
  		}
  		
  		
  	});
  	
  	
  	function toggleMenu(){
  		if(button.hasClass("hidden")){
  			button.removeClass("hidden");
  			$(".movable").each(function(){
  				let x = $( this ).css("top");
  				let valx = parseInt($( "#menu_container" ).height());
  				let xx = parseInt(x.substring(0, x.length - 2)) + valx;
  				
  				value = valx;
  				$( this ).css({top: xx });
  			});
  		}else{
  			button.addClass("hidden");
  			$(".movable").each(function(){
  				let x1 = $( this ).css("top");
  				let valx1 = parseInt($( "#menu_container" ).height());
  				let xx1 = parseInt(x1.substring(0, x1.length - 2)) - value;
  				
  				$( this ).css({top: xx1 });
  			});
  		}
  		
  	}
  	
  });
  