$(document).ready(function()

{

	//slides the element with class "menu_body" when paragraph with class "menu_head" is clicked 

	$("#firstpane p.menu_head").click(function()

    {

		$(this).css({backgroundImage:"url(../AN-images/graphics/acm-down.png)"}).next("div.menu_body").slideToggle(300).siblings("div.menu_body").slideUp("slow");

       	$(this).siblings().css({backgroundImage:"url(../AN-images/graphics/acm-left.gif)"});

	});

	//slides the element with class "menu_body" when mouse is over the paragraph

	$("#secondpane p.menu_head").mouseover(function()

    {

	     $(this).css({backgroundImage:"url(../AN-images/graphics/acm-down.png)"}).next("div.menu_body").slideDown(500).siblings("div.menu_body").slideUp("slow");

         $(this).siblings().css({backgroundImage:"url(../AN-images/graphics/acm-left.gif)"});

	});

	//slides the element with class "menu_body" when mouse is over the paragraph

	$("#thirdpane p.menu_head").mouseover(function()

    {

	     $(this).css({backgroundImage:"url(../AN-images/graphics/acm-down.png)"}).next("div.menu_body").slideDown(500).siblings("div.menu_body").slideUp("slow");

         $(this).siblings().css({backgroundImage:"url(../AN-images/graphics/acm-left.gif)"});

	});


});