function fitHeight(){
	var element = document.getElementById('main');
	if(typeof(element.clientHeight) == 'number'){
		if(parseInt(element.clientHeight) < 200)
			element.style.height = '200px';
		else
			element.style.height = parseInt(element.clientHeight) - 10 + "px";
	}
	if(typeof(element.offsetHeight) == 'number'){
		if(parseInt(element.offsetHeight) < 200)
			element.style.height = '200px';
		else
			element.style.height = parseInt(element.offsetHeight) - 10 + "px";
	}	
}