function $(id){return document.getElementById(id);}

function change_main_pic(page){
	clear_rollovers();
	if(page=="diag"){
		$(page).src = "images/1024_MODEL_5_WO_HEAD1_VH_ON_06.jpg";
		$("main").src = "images/1024_MODEL_5_WO_HEAD1_VH_05.jpg";
	} else 
	if(page=="cust"){
		$(page).src = "images/1024_MODEL_5_WO_HEAD1_VH_ON_07.jpg";
		$("main").src = "images/1024_MODEL_5_WO_HEAD1_VH_CUST_05.jpg";		
	} else 
	if(page=="dyna"){
		$(page).src = "images/1024_MODEL_5_WO_HEAD1_VH_ON_08.jpg";
		$("main").src = "images/1024_MODEL_5_WO_HEAD1_VH_DYN_05.jpg";		
	} else 
	if(page=="maint"){
		$(page).src = "images/1024_MODEL_5_WO_HEAD1_VH_ON_09.jpg";
		$("main").src = "images/1024_MODEL_5_WO_HEAD1_VH_MAIN_05.jpg";		
	} 
}

function clear_rollovers(){
	$("diag").src = "images/1024_MODEL_5_WO_HEAD1_VH_06.jpg";
	$("cust").src = "images/1024_MODEL_5_WO_HEAD1_VH_07.jpg";
	$("dyna").src = "images/1024_MODEL_5_WO_HEAD1_VH_08.jpg";
	$("maint").src = "images/1024_MODEL_5_WO_HEAD1_VH_09.jpg";
}