// JavaScript Document


		function set_main_height(div_1, div_2, div_3, div_4)
		{

			var the_height_1 = 1;
			var the_height_2 = 2;
			var the_height_3 = 3;
			var the_height_4 = 4;

		//	var the_height_1 = document.getElementById(div_1).offsetHeight;
		//	var the_height_2 = document.getElementById(div_2).offsetHeight;
			var the_height_3 = document.getElementById(div_3).offsetHeight;
			var the_height_4 = document.getElementById(div_4).offsetHeight;
			
			// round 1
			if(the_height_1 >= the_height_2){the_height_A = the_height_1;}else{the_height_A = the_height_2;}
			if(the_height_3 >= the_height_4){the_height_B = the_height_3;}else{the_height_B = the_height_4;}
			
			//rond 2
			if(the_height_A >= the_height_B){the_height_F = the_height_A;}else{the_height_F = the_height_B;}
			
			var the_height_F = the_height_F + 40;
			var the_height_full = the_height_F + "px";
			
			document.getElementById('body_container').style.height = the_height_full;
			document.getElementById('main').style.height = the_height_full;
			

		}