var columnHeight = 0;

jQuery(function(){
			
	$( "#dropdown" ).accordion({icons: false, active: false, collapsible: true});
	
	
	//  all columns have same height	
	$(".column_content").each(function(){
		var height = $(this).height();
		if(height>=columnHeight) columnHeight = height+40;
		});
		
	$(".column_content").height(columnHeight);	
	
	/*
		background-image: ;
	background-repeat: repeat-x;	*/
	$("#main-nav li").mouseover(function(){
			
			$("#main-nav li").siblings("li").css({"background-image": "none"});
			
			if($(this).children("ul").length > 0)
			{
				$(this).css({"background-image": "url(images/main-nav-hover.jpg)"});
			}
		});
		
			
	$("#main-nav li ul").mouseleave(function(){
			$("#main-nav li").css({"background-image": "none"});
		});
});