function border(){
	$left = document.getElementById('leftborder');
	$right = document.getElementById('rightborder');
	if($left != null && $right != null){
		$left = $left.offsetHeight;
		$right = $right.offsetHeight;
		if($left >= $right){
			document.getElementById('leftborder').style.borderRight = '1px solid rgb(165, 161, 161)';
		}else{
			document.getElementById('rightborder').style.borderLeft = '1px solid rgb(165, 161, 161)';
		}
	}
}