function hide(divid) {
	document.getElementById(divid).style.display = "none";
}

function show(divid) {
	document.getElementById(divid).style.display = "block";
}
function showOrHide(divid,imgid) {
	if (document.getElementById(divid).style.display == "none") {
		show(divid); 
	}
	else {
		hide(divid); 	
	}
}

function hideP(divid) {
	document.getElementById(divid).style.display = "none";
}

function showP(divid) {
	window.parent.document.getElementById(divid).style.display = "block";
}
function showOrHideP(divid,imgid) {
	if (window.parent.document.getElementById(divid).style.display == "none") {
		showP(divid); 
	}
	else {
		hideP(divid); 	
	}
}

function change(imgid) {
	var imgids = new Array("news", "lessons", "biography", "resume", "music", "gallery", "links", "contactus");

	for (x = 0; x < 8; x++)
	{
		if(imgids[x]==imgid)
		{
			var myimg = "images/" + imgids[x] + "_sel.gif";
	    	document.getElementById(imgids[x]).src = myimg;;			
		}
		else
		{
			var myimg = "images/" + imgids[x] + ".gif";
	    	document.getElementById(imgids[x]).src = myimg;;
		}
	}
}

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) { //v4.01
  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];}
}