code: function clickRegion( e ) {
  	
  	let pos 	= {
  		x : e.clientX,
  		y : e.clientY
  	},
  	region 		= '',
  	dividant 	= 4,
  	right  		= window.innerWidth - (window.innerWidth / dividant),
  	left   		= (window.innerWidth / dividant),
  	top    		= (window.innerHeight / dividant),
  	bottom 		= window.innerHeight - (window.innerHeight / dividant);
  
  	if( pos.y <= top ) { region = 'top'; }
  	else if(  pos.y >= bottom ) { region = 'bottom'; }
  
  	if( pos.x <= left ) { region = 'left'; }
  	else if(  pos.x >= right ) { region = 'right'; }
  
  	return region;
  }
docs: get click quadrant based on mouse position