if (document.images){        					  		
roll_plain = new Image;					         	
roll_plain.src = 'images/clear-dot.gif';         				
roll_home = new Image;         						
roll_home.src = 'images/roll-p-home.gif';				
roll_contact = new Image;							
roll_contact.src = 'images/roll-p-contact.gif';			
roll_sweatshirt = new Image;							
roll_sweatshirt.src = 'images/roll-p-news.gif';		
roll_help = new Image;								
roll_help.src = 'images/roll-p-help.gif';				
roll_adopt = new Image;							
roll_adopt.src = 'images/roll-p-adopt.gif';			
roll_questions = new Image;							
roll_questions.src = 'images/roll-p-questions.gif';		
roll_residents = new Image;							
roll_residents.src = 'images/roll-p-residents.gif';		
}										

function changeimage(iname, gname) {						
	if(document.images){							
	iname.src = gname.src;							
	}									
}