equalHeight = function(box1_id,box2_id){
		$(box1_id).setStyle({
			height:''
		});
		$(box2_id).setStyle({
			height:''
		});
		box1_height = $(box1_id).getHeight();
		box2_height = $(box2_id).getHeight();
		if(box1_height > box2_height){	
			$(box2_id).setStyle({
				height:''+ box1_height-18 +'px'
			});
		};
	
		if(box1_height < box2_height){
			$(box1_id).setStyle({
				height:''+ box2_height-18 +'px'
			});
		};
	}