var selectedCategory;
function OpenSubMenu(Category) {				
	for(var i=1; i<=25; i++) if(document.all("Category"+i)!=null) document.all("Category"+i).style.display="none";			
	if (selectedCategory!=Category) {
		selectedCategory = Category;				
		document.all("Category"+Category).style.display = "";
	}				
	else {
		selectedCategory = 0;
	}
}