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_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_findObj(n, d) { //v4.0
	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 && document.getElementById) x=document.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_reloadPage(init) {  //reloads the window if Nav4 resized
	if (init==true) {
		with (navigator) {
			if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
				document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage;
			}
		}
	}
	else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH)
		location.reload();
}

function goToPage(leftFrame, middleFrame, rightFrame) {
	document.left_frame.location.href = leftFrame;
	document.middle_frame.location.href = middleFrame;
	document.right_frame.location.href = rightFrame;
}

function getStartPage() {
	var searchString = document.location.search.split("=");
	var p = searchString[1];
	if(p) {
		document.left_frame.location.href = 'observations.htm';
		document.middle_frame.location.href = 'images.htm';
		document.right_frame.location.href = 'blank.htm';
	}
	else {
		document.left_frame.location.href = 'observations.htm';
		document.middle_frame.location.href = 'menu.htm';
		document.right_frame.location.href = 'blank.htm';
	}
}