function SM_preloadImages() 
{
	var d=document; 
	if(d.images)
	{ 
		if(!d.SM_p) 
			d.SM_p=new Array();
		var i,j=d.SM_p.length,a=SM_preloadImages.arguments; 
		for(i=0; i<a.length; i++)
		{ 
			d.SM_p[j]=new Image; 
			d.SM_p[j++].src=a[i];
		}
	}
}

function SM_preloadButtons() 
{
	var i,a=SM_preloadButtons.arguments; 
	for(i=0; i<a.length; i+=1)
	{
		SM_preloadImages(ImageUrl(a[i] + ".jpg"), ImageUrl(a[i] + "-selected.jpg"));
	}
}

function SM_findObj(n, d) 
{
	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=SM_findObj(n,d.layers[i].document);
	if(!x && d.getElementById) 
		x=d.getElementById(n); 
	return x;
}


function ImageUrl(grpName, pageName, mouseOver)
{
	var selectedStr = (SM_page == pageName) ? "-selected" : "";
	if (mouseOver) 
	{
		selectedStr = "-selected";
	}
	var ret = "/images/" + grpName + selectedStr + ".jpg";
	return ret;
}

function SMOver(grpName, octave, pageName) 
{ 
	var img;
	if ((img = SM_findObj(grpName + octave)) != null) 
	{
		if (!img.upImg) 
			img.upImg = img.src;
		/*if (SM_page != pageName)
			img.width = img.width - 5;*/
		img.src = ImageUrl(grpName, pageName, true);
	}
	/*var song;
	if ((song = SM_findObj('song')) != null) 
	{
		var note;
		if ((note = SM_findObj(grpName + "Midi")) != null) 
		{
			song.src=note.src;
		}
	}*/
}

function SMOut(grpName, octave, pageName) 
{
	var img;
	if ((img = SM_findObj(grpName + octave)) != null) 
	{
		//img.src = '';
		/*if (SM_page != pageName)
			img.width = img.width + 5;*/
		if (img.upImg) 
			img.src = img.upImg;
		else
			img.src = ImageUrl(grpName, pageName, false);
	}
}

function SMClick(grpName, imgName, url) 
{
	var i,img,nbArr;
	nbArr = document[grpName];
	if (nbArr)
		for (i=0; i < nbArr.length; i++) 
		{ 
			img=nbArr[i]; 
			img.src = img.upImg; 
			img.downImg = 0; 
		}
	document[grpName] = nbArr = new Array();
	if ((img = SM_findObj(imgName)) != null) 
	{
		if (!img.upImg) 
			img.upImg = img.src;
		img.src = img.downImg = url;
		nbArr[nbArr.length] = img;
	} 
}