var IE = document.all?true:false

var NS = document.layers?true:false

function resize(){	
	/*var margin = IE ? 40 : 20;
	var menu = parseInt(document.getElementById('menu_div').offsetHeight) + 47;
	document.getElementById('left').style.height =  menu + 'px';
	var header = parseInt(document.getElementById('header').offsetHeight) + 16;	
	var left = parseInt(document.getElementById('left').offsetHeight) + 230;	
	var right = parseInt(document.getElementById('right').offsetHeight) + 230;
	var bigger = left >= right ? left : right;
	bigger -= margin;
	var tot = header + bigger;		
	document.getElementById('main').style.height =  tot + 'px';
	var d = parseInt(document.getElementById('bottom').offsetTop) + parseInt(document.getElementById('bottom').offsetHeight);	
	d -= bigger;	
	if(d && !NS){
		bigger += 20;
	}
	document.getElementById('body').style.height =  bigger + 'px';*/
}

function showSubmenu(obj){
	var ul = obj.getElementsByTagName('UL');
	if(ul[0]){
		ul[0].style.display = 'block';	
	}
}

function hideSubmenu(obj){
	var ul = obj.getElementsByTagName('UL');
	if(ul[0]){
		ul[0].style.display = 'none';	
	}
}