<!--
    function popUp( url ){
	newWin = window.open( url, "popUp", "toolbar=0,menubar=0,directories=0,location=0,resizeable=0,left=110px,top=85px,screenX=110px,screenY=85px,width=540px,height=390px");
	newWin.focus();
    }

    // Set the default nav button location
    var curNav = 0;

    // Initialize nav images
    function navInit(){
	navSwap('nav0','mainNav', curNav);
    }

    //  Preload nav images
    function navPreload (imgName) {
	if( document.images ){
	    eval( imgName + ' = new Image()' )
	    eval( imgName + '.src = "images/' + imgName + '.gif"' )
	}
    }

    // Preload the nav graphic, backnav graphic, and clear graphic
    navPreload("orange_dot");
    navPreload("onepx");

    //  Swap Images function
    //  layerID: parent layer
    //  imgName: image name (stripped of number)
    //  imgNumber: image number (0,1,2...) - e.g. the button to swap
    function navSwap( layerID, imgName, imgNumber ) {
	var imgNameOld, imgNameNew, imgObj;

	imgObj = "orange_dot";
	imgNameOld = "mainNav" + curNav;
	imgNameNew = "mainNav" + imgNumber;
	curNav = imgNumber;
	if( document.layers ){
	    if( layerID=="" ){
		eval('document.images["' + imgNameOld + '"].src = onepx.src')
		eval('document.images["' + imgNameNew + '"].src = ' + imgObj + '.src')
	    } else {
		eval('document.' + layerID + '.document.images["' + imgNameOld + '"].src = onepx.src')
		eval('document.' + layerID + '.document.images["' + imgNameNew + '"].src = ' + imgObj + '.src')
	    }
	}
	else {
	    document.images[imgNameOld].src = eval("onepx.src")
	    document.images[imgNameNew].src = eval(imgObj + ".src")
	}
    }
//-->