function imageSwap(imgName,imgObj) { 
	if (document.images) document.images[imgName].src = imgObj.src		
}

var aImages = new Array()

function preload(imgObj,imgSrc) {
	if (document.images) {
		aImages[imgObj] = new Image()
		aImages[imgObj].src = imgSrc
	}
}

preload("search_now_off",strRoot + "/images/buttons/search_now_off.gif")
preload("search_now_on",strRoot + "/images/buttons/search_now_on.gif")
preload("search_again_off",strRoot + "/images/buttons/search_again_off.gif")
preload("search_again_on",strRoot + "/images/buttons/search_again_on.gif")
preload("start_again_off",strRoot + "/images/buttons/start_again_off.gif")
preload("start_again_on",strRoot + "/images/buttons/start_again_on.gif")
preload("search_hide_off",strRoot + "/images/buttons/hide_search_off.gif")
preload("search_hide_on",strRoot + "/images/buttons/hide_search_on.gif")
preload("continue_off",strRoot + "/images/buttons/continue_off.gif")
preload("continue_on",strRoot + "/images/buttons/continue_on.gif")
preload("back_off",strRoot + "/images/buttons/back_off.gif")
preload("back_on",strRoot + "/images/buttons/back_on.gif")
preload("back_offers_off",strRoot + "/images/buttons/back_offers_off.gif")
preload("back_offers_on",strRoot + "/images/buttons/back_offers_on.gif")
preload("book_now_off",strRoot + "/images/buttons/book_now_off.gif")
preload("book_now_on",strRoot + "/images/buttons/book_now_on.gif")
preload("add_route_off",strRoot + "/images/buttons/add_route_off.gif")
preload("add_route_on",strRoot + "/images/buttons/add_route_on.gif")
preload("multicenter_continue_off",strRoot + "/images/buttons/multicenter_continue_off.gif")
preload("multicenter_continue_on",strRoot + "/images/buttons/multicenter_continue_on.gif")
preload("login_now_on",strRoot + "/images/buttons/login_now_on.gif")
preload("login_now_off",strRoot + "/images/buttons/login_now_off.gif")
preload("send_password_on",strRoot + "/images/buttons/send_password_on.gif")
preload("send_password_off",strRoot + "/images/buttons/send_password_off.gif")
preload("hold_on",strRoot + "/images/buttons/hold_on.gif")
preload("hold_off",strRoot + "/images/buttons/hold_off.gif")
preload("cancel_on",strRoot + "/images/buttons/cancel_on.gif")
preload("cancel_off",strRoot + "/images/buttons/cancel_off.gif")
preload("update_on",strRoot + "/images/buttons/update_on.gif")
preload("update_off",strRoot + "/images/buttons/update_off.gif")
preload("question_on",strRoot + "/images/buttons/question_on.gif")
preload("question_off",strRoot + "/images/buttons/question_off.gif")
preload("new_search_on",strRoot + "/images/buttons/new_search_on.gif")
preload("new_search_off",strRoot + "/images/buttons/new_search_off.gif")
preload("send_enquiry_on",strRoot + "/images/buttons/send_enquiry_on.gif")
preload("send_enquiry_off",strRoot + "/images/buttons/send_enquiry_off.gif")
preload("confirm_option_on",strRoot + "/images/buttons/confirm_option_on.gif")
preload("confirm_option_off",strRoot + "/images/buttons/confirm_option_off.gif")

function msoverSearch() { 
	if (getElement("mainSearch").style.display=='none') { 
		imageSwap('searchbutton',aImages['search_again_on'])
	}
	else {
		imageSwap('searchbutton',aImages['search_hide_on'])
	}
}

function msoutSearch() {
	if (getElement("mainSearch").style.display=='none') {
		imageSwap('searchbutton',aImages['search_again_off'])
	}
	else {
		imageSwap('searchbutton',aImages['search_hide_off'])
	}
}