function set_rows_even(column1,column2){
			if(!document.getElementById) return false;
			var left 		= document.getElementById(column1);
			var right 		= document.getElementById(column2);
			
			var left_px 	= getObjectHeight(left);
			var right_px 	= getObjectHeight(right);
			
			if(left_px > right_px){
					right.style.height = left_px - 20 + 'px';
			} else {
					left.style.height = right_px - 20 + 'px';
					
			}
}