$(document).ready(function(){
	
	$("ul#menu > li").hover( function(){
		$(this).css("background","#98bb55");
		$(this).css("height","40px");
		$(this).children("ul.dropdown_1column").show();;
		
		if ($(this).attr("id") == "accueil"){
			$(this).css("height","30px");
		}
	},function(){
		$(this).css("background","transparent");
		$(this).children("ul.dropdown_1column").hide();
	})
		
});