//
// Include file for various image handling, for roll-over effects.
// Since many of the pictures in the Guntopia site are using roll-over
// effects and they are done using FireWorks, which create the same
// functions over and over, it is creating problems with multiple
// functions using the same name multiple times.
//
// Therefore this file was created, containing all the functions needed
// for these types of roll-over images. Include this once, in the
// header of the page.
//
// The functions are mainly used from the Navbar and Leftbar and on the
// Home page. The file is included from the Basefrme.php and
// BasefrmeSpecial.php files since these are called from all modules
// and also are the ones that contains the head/body commands.
//

function MM_findObj(n, d)
{ //v3.0
	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); 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_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];}}
}

/* Functions that swaps down images. */
function MM_nbGroup(event, grpName)
{ //v3.0
	var i,img,nbArr,args=MM_nbGroup.arguments;
	if (event == "init" && args.length > 2)
	{
		if ((img = MM_findObj(args[2])) != null && !img.MM_init)
		{
			img.MM_init = true; img.MM_up = args[3]; img.MM_dn = img.src;
			if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
			nbArr[nbArr.length] = img;
			for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null)
			{
				if (!img.MM_up) img.MM_up = img.src;
				img.src = img.MM_dn = args[i+1];
				nbArr[nbArr.length] = img;
			}
		}
	}
	else if (event == "over")
	{
		document.MM_nbOver = nbArr = new Array();
		for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null)
		{
			if (!img.MM_up) img.MM_up = img.src;
			img.src = (img.MM_dn && args[i+2]) ? args[i+2] : args[i+1];
			nbArr[nbArr.length] = img;
		}
	}
	else if (event == "out" )
	{
		for (i=0; i < document.MM_nbOver.length; i++)
		{
			img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up;
		}
	}
	else if (event == "down")
	{
		if ((nbArr = document[grpName]) != null)
		{
			for (i=0; i < nbArr.length; i++)
			{
				img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0;
			}
		}
		document[grpName] = nbArr = new Array();
		for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
			if (!img.MM_up) img.MM_up = img.src;
			img.src = img.MM_dn = args[i+1];
			nbArr[nbArr.length] = img;
		}
	}
}


//
// The following function is used to show/hide an area, the area being
// a named <div>. For this function a unique function should be created
// for each <div> to show or hide that area. Example:
// function ShowGuntopia1()
// {
//	showhide(\'Guntopia_1\', \'block\'); // Show area Guntopia_1
//	showhide(\'Guntopia_Main\', \'none\'); // And hide Guntopia_Main
// }

function showhide(layer_ref, state)
{ 
	if (document.all)
	{ //IS IE 4 or 5 (or 6 beta) 
		eval( "document.all." + layer_ref + ".style.display = state"); 
	} 
	if (document.layers)
	{ //IS NETSCAPE 4 or below 
		document.layers[layer_ref].display = state; 
	} 
	if (document.getElementById &&!document.all)
	{ 
		hza = document.getElementById(layer_ref); 
		hza.style.display = state; 
	} 
}