// menu dropdown
var timeout    = 500;
var closetimer = 0;
var ddmenuitem = 0;

function jsddm_open()
{  jsddm_canceltimer();
   jsddm_close();
   ddmenuitem = $(this).find('ul').css('visibility', 'visible');}

   function jsddm_close()
{  if(ddmenuitem) ddmenuitem.css('visibility', 'hidden');}

   function jsddm_timer()
{  closetimer = window.setTimeout(jsddm_close, timeout);}

   function jsddm_canceltimer()
{  if(closetimer)
{  window.clearTimeout(closetimer);
   closetimer = null;}}

   $(document).ready(function()
{  $('#jsddm > li').bind('mouseover', jsddm_open)
		   $('#jsddm > li').bind('mouseout',  jsddm_timer)
   
	// slide login
			$('#showLogin').click(function() {
		$('#formLogin').slideDown('slow', function() {
	    // Animation complete.
});
});
	
			$('#hideLogin').click(function() {
				$('#formLogin').slideUp('slow', function() {
	    // Animation complete.
});
});

	// slide sesarch
			$('#showSearch').click(function() {
		$('#divSearch').slideDown('slow', function() {
	    // Animation complete.
});
});
	

	// destaques rotativos
			var Screens = new Array();
	Screens[0] = "destaque_1";
	Screens[1] = "destaque_2";
	Screens[2] = "destaque_3";

	var UpdateScreen = window.setInterval(ChangeScreen, 8000);
	
	function ChangeScreen() {		

		for (i in Screens)
{
			if ( $("#" + Screens[i]).css("visibility") == "visible" )
{
				// verificar se é último slide
						if ( i == Screens.length - 1 ) 
{
					// mostrar todos slides
							for (i in Screens)
{
						$("#" + Screens[i]).css("visibility", "visible");
						$("#" + Screens[i]).fadeIn("normal");
}
}
				else 
{
					$("#" + Screens[i]).fadeOut("normal", function() { $(this).css("visibility", "hidden") } );
}
				break;
}
}
}


});

   document.onclick = jsddm_close;
   
	function add_bookmark() { 
	   var browsName = navigator.appName; 
	   if (browsName == "Microsoft Internet Explorer") { 
		   window.external.AddFavorite('http://www.linuxmagazine.com.br','Linux Magazine' );
	   } else if (browsName == "Netscape") { 
		   alert ("Para adicionar este site aos seus favoritos aperte CTRL+D"); 
	   }
		   }