var isLayers = 0;
var isAll = 0;
var isDHTML = 0;
var domTop;
var domNew;

if (document.layers) {isLayers = 1; isDHTML = 1;}
if (document.all) {isAll = 1;  isDHTML = 1;}	

docObj = (isLayers) ? 'document' : 'document.all';	
styleObj = (isLayers) ? '' : '.style';

var currTop='layer1';

function bringForward(newTop) 
{
        domTop = eval(docObj +  '.' + currTop + styleObj);
		domNew = eval(docObj +  '.' + newTop + styleObj);
        domTop.zIndex = '0';
        domNew.zIndex = '100';
        currTop = newTop;
return;
}