// preload =============================== 
function pathDepth2(path)
	{
	// mexico subheaders 
	preload("cort",path+"sh_cort.gif");
	preload("cort1",path+"sh_cort_roll.gif");
	preload("monta",path+"sh_mont.gif");
	preload("monta1",path+"sh_mont_roll.gif");
	preload("conq",path+"sh_conq.gif");
	preload("conq1",path+"sh_conq_roll.gif");
	
	// amazonia subheaders 
	preload("early",path+"sh_ama_early.gif");
	preload("early1",path+"sh_ama_early_roll.gif");
	preload("quest",path+"sh_ama_quest.gif");
	preload("quest1",path+"sh_ama_quest_roll.gif");
	preload("leg",path+"sh_ama_leg.gif");
	preload("leg1",path+"sh_ama_leg_roll.gif");

	// namerica subheaders
	preload("amer",path+"sh_dev_amer.gif");
	preload("amer1",path+"sh_dev_amer_roll.gif");
	preload("dev",path+"sh_dev_dev.gif");
	preload("dev1",path+"sh_dev_dev_roll.gif");
	preload("leg",path+"sh_dev_leg.gif");
	preload("leg1",path+"sh_dev_leg_roll.gif");
	
	// peru subheaders
	preload("inc",path+"sh_piza_inc.gif");
	preload("inc1",path+"sh_piza_inc_roll.gif");
	preload("voy",path+"sh_piza_voy.gif");
	preload("voy1",path+"sh_piza_voy_roll.gif");
	preload("leg",path+"sh_piza_leg.gif");
	preload("leg1",path+"sh_piza_leg_roll.gif");	

	// Journal subheaders
	preload("journal_amazonia",path+"journal_amazonia.gif");
	preload("journal_amazonia1",path+"journal_amazonia_roll.gif");
	preload("journal_america",path+"journal_america.gif");
	preload("journal_america1",path+"journal_america_roll.gif");
	preload("journal_mexico",path+"journal_mexico.gif");
	preload("journal_mexico1",path+"journal_mexico_roll.gif");
	preload("journal_peru",path+"journal_peru.gif");
	preload("journal_peru1",path+"journal_peru_roll.gif");
	
	// journal
	preload("journal_mike_text",path+"journal_mike_text.gif");
	preload("journal_mike_text1",path+"journal_mike_text_roll.gif");

	//sub-subheaders
	preload("michaels_intro",path+"ssh_michaels_intro.gif");
	preload("michaels_intro1",path+"ssh_michaels_intro_roll.gif");
	preload("milestones",path+"ssh_milestones.gif");
	preload("milestones1",path+"ssh_milestones_roll.gif");
	preload("essays",path+"ssh_essays.gif");
	preload("essays1",path+"ssh_essays_roll.gif");

	// page numbers
	preload("page1",path+"page1.gif");
	preload("page1_roll",path+"page1_roll.gif");
	preload("page2",path+"page2.gif");
	preload("page2_roll",path+"page2_roll.gif");
	preload("page3",path+"page3.gif");
	preload("page3_roll",path+"page3_roll.gif");
	preload("page4",path+"page4.gif");
	preload("page4_roll",path+"page4_roll.gif");
	preload("page5",path+"page5.gif");
	preload("page5_roll",path+"page5_roll.gif");
	preload("page6",path+"page6.gif");
	preload("page6_roll",path+"page6_roll.gif");
	preload("page7",path+"page7.gif");
	preload("page7_roll",path+"page7_roll.gif");
	preload("page8",path+"page8.gif");
	preload("page8_roll",path+"page8_roll.gif");
	}

function preload(imgObj,imgSrc) 
	{
	eval(imgObj+' = new Image()')
	eval(imgObj+'.src = "'+imgSrc+'"')
	}

// rollover function =============================== 
function changeImage(imgName,imgObj) 
	{
	document.images[imgName].src = eval(imgObj+".src")
	}