// Netscape 3.0 compatibility test (for javascript image swapping)
	compat = false;
	if( parseInt( navigator.appVersion ) >= 3 ) {
		compat = true; 
	}

// cache images for quick swapping
	if( compat ) {

	    l_tools = new Image();
		l_tools.src = "/images/lTools.gif";
		
		lo_back = new Image();
		lo_back.src = "/images/tBack.gif";
	
		lo_bookmark = new Image();
		lo_bookmark.src = "/images/tBookmark.gif";
		
		lo_print = new Image();
		lo_print.src = "/images/tPrintThisPage.gif";
		
		lo_email = new Image();
		lo_email.src = "/images/tEmailNorseman.gif";
		
		lo_contact = new Image();
		lo_contact.src = "/images/tContactInfo.gif";		
				
	}
	

// swap images using the cached images

function changeImg(x, y) {
	if( compat ) {
		document.images[x].src=eval(y+'.src'); 
		}
	}