if (document.images) {
	var email_off = new Image();
	email_off.src = 'images/tools/email_off.gif';
	var email_over = new Image();
	email_over.src = 'images/tools/email_over.gif';
	var print_off = new Image();
	print_off.src = 'images/tools/print_off.gif';
	var print_over = new Image();
	print_over.src = 'images/tools/print_over.gif';
	var info_off = new Image();
	info_off.src = 'images/tools/info_off.gif';
	var info_over = new Image();
	info_over.src = 'images/tools/info_over.gif';

	var text_off = new Image();
	text_off.src = 'images/bkgdSpacer.gif';

	var navEnd_off = new Image();
	navEnd_off.src= 'images/nav/navEnd_off.gif';
	var navEnd_over = new Image();
	navEnd_over.src= 'images/nav/navEnd_over.gif';
}

function toolState(tool,state) {
	var tool, state;

	if (document.images) {
		// tool image
		document.images[tool].src = eval(tool + '_' + state + '.src');
	}
}

function navOver(id,state) {
	var id, state;
	
	if (document.images) {
		var endImg = 'navEnd'+id;
		document.images[endImg].src = eval('navEnd_' + state + '.src');
	
	}
	var bkgd1 = document.getElementById('navBkgd1'+id);
	var bkgd2 = document.getElementById('navBkgd2'+id);

	bkgd1.bgColor = (state=='over') ? '#220022' : '';
	bkgd2.bgColor = (state=='over') ? '#220022' : '';
}