function bs()
{
	var h1 = document.getElementById("l_block").offsetHeight;
	var h2 = document.getElementById("r_block").offsetHeight;
	var h3 = document.getElementById("text").offsetHeight;
	
	if (h1 > h3 && h1 > h2)
		document.getElementById("text").style.height = h1 + 'px';
	else if (h2 > h3 && h2 > h1)
		document.getElementById("text").style.height = h2 + 'px';

}