function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

greendoton = new Image();
greendotoff = new Image();
helpbeon = new Image();
helpinvestigate = new Image();
helpknowhow = new Image();
helpexplore = new Image();
helpdoit = new Image();
helptalkabout = new Image();
helpteachersguide = new Image();
helpfeedback = new Image();
helpmagazine = new Image();
helpwhen = new Image();
helpabout = new Image();
helpoff = new Image();
exploreon = new Image();
exploreoff = new Image();
investigateon = new Image();
investigateoff = new Image();	
knowhowon = new Image();
knowhowoff = new Image();
doiton = new Image();
doitoff = new Image();
beonon = new Image();
beonoff = new Image();
talkabouton = new Image();
talkaboutoff = new Image();
whensitonon = new Image();
whensitonoff = new Image();

greendoton.src = "/dragonflytv/images/greendot_roll.gif";
greendotoff.src = "/dragonflytv/images/greendot.gif";
helpbeon.src = "/dragonflytv/images/help_beon.gif";
helpinvestigate.src = "/dragonflytv/images/help_investigate.gif";
helpknowhow.src = "/dragonflytv/images/help_knowhow.gif";
helpexplore.src = "/dragonflytv/images/help_explore.gif";
helpdoit.src = "/dragonflytv/images/help_doit.gif";
helptalkabout.src = "/dragonflytv/images/help_talkabout.gif";
helpteachersguide.src = "/dragonflytv/images/help_teachersguide.gif";
helpfeedback.src = "/dragonflytv/images/help_feedback.gif";
helpmagazine.src = "/dragonflytv/images/help_magazine.gif";
helpwhen.src = "/dragonflytv/images/help_scifair.gif";
helpabout.src = "/dragonflytv/images/help_about.gif";
helpoff.src = "/dragonflytv/images/help_dragonfly.gif";	
exploreon.src = "/dragonflytv/images/explore_roll.gif";
exploreoff.src = "/dragonflytv/images/explore.gif";
investigateon.src = "/dragonflytv/images/investigatethis_roll.gif";
investigateoff.src = "/dragonflytv/images/investigatethis.gif";
knowhowon.src = "/dragonflytv/images/knowhow_roll.gif";
knowhowoff.src = "/dragonflytv/images/knowhow.gif";
doiton.src = "/dragonflytv/images/doit_roll.gif";
doitoff.src = "/dragonflytv/images/doit.gif";
beonon.src = "/dragonflytv/images/beon_roll.gif";
beonoff.src = "/dragonflytv/images/beon.gif";
talkabouton.src = "/dragonflytv/images/talkabout_roll.gif";
talkaboutoff.src = "/dragonflytv/images/talkabout.gif";
whensitonon.src = "/dragonflytv/images/whensiton_roll.gif";
whensitonoff.src = "/dragonflytv/images/whensiton.gif";


var alreadyopen = new Array();
var newwin = new Array();

function openWindow(theURL,winName,features,wid,hei){

	var winl = (screen.width - wid - 10) / 2;
	var wint = (screen.height - hei - 29) / 2;
	var winpos = ',height='+hei+',width='+wid+',top='+wint+',left='+winl;
	
	if(alreadyopen[winName]){
		if(!newwin[winName].closed){
			newwin[winName].focus();
		}
		else{
			newwin[winName] = window.open(theURL,winName,features + winpos);
		}
	}
	else{
		alreadyopen[winName] = 1;	
		newwin[winName] = window.open(theURL,winName,features + winpos);
		newwin[winName].focus();
	}
}




function visit(newURL) {
	if (newURL != "")	{
		newURL=newURL
		location.href=newURL
	}
} 





function Netscape_reloadPage(init) {  
  if (init==true) 
  	with (navigator) {
  		if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    		document.MM_pgW=innerWidth; 
    		document.MM_pgH=innerHeight; 
    		onresize=Netscape_reloadPage; 
    	}
    }
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) 
  	location.reload();
}
//Netscape_reloadPage(true); -- unnecessary -- no layers here