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	backmessage= "Back to Top";
	

	homeon= new Image(65,16);
	homeon.src="../images/b_home_on.gif";  

	homeoff= new Image(65,16);
	homeoff.src="../images/b_home_off.gif";
	
	homemessage= "The Lancaster University home page";
	
	
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	azoff= new Image(65,16);
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	azmessage= "Lancaster University - Central A-Z of departments, faculties and services";
	

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	newsmessage= "The latest news from Lancaster University";
	
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	feedbackmessage= "Let us know what you think of the Lancaster University website";
	
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	searchoff= new Image(64,16);
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	searchmessage= "Search the Lancaster University website";
	
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	helpoff= new Image(65,16);
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	helpmessage= "Assistance for visitors to the Lancaster University website";
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function activate(imgName)
	{
	if (document.images)
		{
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function deactivate(imgName)
	{
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