window.onload = function(){
	hide_menu();
}

function hide_menu(){
	for(var ii = 1; ii < 6; ii++){
		var div = document.getElementById('top_'+ii+'_div');
		div.style.display='none';
	}
}

function hide_divs(n,p){ // n == number of div needing shown || p == switch on or off
	for(var i = 1; i < 6; i++){
		var div = document.getElementById('top_'+i+'_div');
		div.style.display='none';
	}
	if(p == 1){
		var div = document.getElementById('top_'+n+'_div');
		div.style.display='block';
		var browser = navigator.appName;
		if(browser == 'Microsoft Internet Explorer'){
			div.style.top = '20px';
		}
		document.body.style.cursor = 'default';
	}
}