function isNS()
{
    return ((document.layers)?true:false);
}


function isN6()
{
    return (document.getElementById&&!document.all);
}

function isMac()
{
    return (navigator.platform.indexOf("Mac")!=-1);
}

function dGet(id,pid)
{
    if (isNS())
    {
        if (pid) return "document." + pid + ".document." +id;
        else return "document.layers['" + id + "']";
    }
    else
    {
        if (isN6()) return "document.getElementById('"+id+"')";
        else return "document.all['" + id + "']";
    }
}

function dShw(id,pid,bl)
{
	Eval(dGet(id,pid) + ((!isNS())? ".style" : "") + ".visibility = " + ((bl)? "'visible'" : "'hidden'"));
}



function tancar_menu(id_menu, img_titol)
{
	eval(dGet("menu"+id_menu,null) + ".style.display = 'none'");
	MM_swapImage("mesmenys"+ id_menu,'','/web/img/'+ img_titol +'_mes.gif',1);
	if (id_menu == 0) { document.images.mesmenys0.alt="Desplegar menú" };
	if (id_menu == 2) { document.images.mesmenys2.alt="Desplegar menú" };
}

function obrir_menu(id_menu, img_titol)
{
	eval(dGet("menu"+id_menu,null) + ".style.display = 'block'");
	MM_swapImage("mesmenys"+ id_menu,'','/web/img/'+ img_titol +'_menys.gif',1);
	if (id_menu == 0) { document.images.mesmenys0.alt="Plegar menú" };
	if (id_menu == 2) { document.images.mesmenys2.alt="Plegar menú" };
}


function actualitzar_menu(id_menu, max, img_titol)
{
	if (eval(dGet("menu"+id_menu, null) + ".style.display") == "")
	{
	  eval(dGet("menu"+id_menu,null) + ".style.display = 'none'");
	  MM_swapImage("mesmenys"+ id_menu,'','/img/'+ img_titol +'_mes.gif',1);
	  if (id_menu == 0) { document.images.mesmenys0.alt="Desplegar menú" };
	  if (id_menu == 2) { document.images.mesmenys2.alt="Desplegar menú" };
	}
	else
	{
	 if (eval(dGet("menu"+id_menu, null) + ".style.display") == "none")
	 {
	   eval(dGet("menu"+id_menu,null) + ".style.display = 'block'");
	   MM_swapImage("mesmenys"+id_menu,'','/img/'+ img_titol +'_menys',1);
	   if (id_menu == 0) { document.images.mesmenys0.alt="Plegar menú" };
	   if (id_menu == 2) { document.images.mesmenys2.alt="Plegar menú" };
	 }
	 else
	 {
		 eval(dGet("menu"+id_menu,null) + ".style.display = 'none'");
	   MM_swapImage("mesmenys"+id_menu,'','/img/'+ img_titol +'_mes.gif',1);
	   if (id_menu == 0) { document.images.mesmenys0.alt="Desplegar menú" };
	   if (id_menu == 2) { document.images.mesmenys2.alt="Desplegar menú" };
	 }
	}
}