function checker(container, item, step) {
	try {
		counter = 1;
		items = document.getElementById(container).getElementsByTagName('div');
		for(i = 0; i < items.length; i++){
			if(items[i].className == item) {
				if(counter == step) {
					items[i].style.marginRight = '0';
					counter = 1;
				}
				else
					counter++;
			}
		}
	}
	catch(e) {
	}
}
function dropDown(target) {
	obj = document.getElementById(target);
	if(!obj.getElementsByTagName('li').length==0) {
		if(obj.style.display != 'block')
			obj.style.display = 'block';
		else
			obj.style.display = 'none';
	}
}