// Configurações do Menu
var menuwidth='150px'
var menubgcolor='#FFFFFF'
var disappeardelay=100
var hidemenu_onclick="yes"


// Funções
var ie4	=	document.all;
var ns6	=	document.getElementById&&!document.all;

if (ie4||ns6)
{
	document.write('<iframe id="ifrFix" style="display:none;position:absolute;FILTER:alpha(opacity=0);opacity:0"></iframe><div id="dropmenudiv" style="visibility:hidden;width:'+menuwidth+';background-color:'+menubgcolor+'" onMouseover="clearhidemenu()" onMouseout="dynamichide(event)"></div>');
}

function getposOffset(what, offsettype)
{
	var totaloffset		= (offsettype=="left")? what.offsetLeft : what.offsetTop;
	var parentEl		= what.offsetParent;
	while (parentEl!=null)
	{
		totaloffset		= (offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
		parentEl		= parentEl.offsetParent;
	}
	return totaloffset;
}


function showhide(obj, e, visible, hidden, menuwidth)
{
	if (ie4||ns6)
	{
		dropmenuobj.style.left=dropmenuobj.style.top = -500;
	}

	if (menuwidth!="")
	{
		dropmenuobj.widthobj		= dropmenuobj.style;
		dropmenuobj.widthobj.width	= menuwidth;
	}
	
	if (e.type=="click" && obj.visibility==hidden || e.type=="mouseover")
	{
		obj.visibility = visible;
		document.getElementById('ifrFix').style.display = 'block';
	}
	else if (e.type=="click")
	{
		obj.visibility	= hidden;
		document.getElementById('ifrFix').style.display = 'none';
	}
}

function iecompattest()
{
	return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body;
}

function clearbrowseredge(obj, whichedge)
{
	var edgeoffset = 0;

	if (whichedge=="rightedge")
	{
		var windowedge=ie4 && !window.opera? iecompattest().scrollLeft + iecompattest().clientWidth - 15 : window.pageXOffset + window.innerWidth - 15
		dropmenuobj.contentmeasure=dropmenuobj.offsetWidth
		if (windowedge-dropmenuobj.x < dropmenuobj.contentmeasure)
		{
			edgeoffset = dropmenuobj.contentmeasure - obj.offsetWidth;
		}
	}
	else
	{
		var windowedge=ie4 && !window.opera? iecompattest().scrollTop+iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18
		dropmenuobj.contentmeasure=dropmenuobj.offsetHeight
		if (windowedge-dropmenuobj.y < dropmenuobj.contentmeasure)
		{
			edgeoffset = dropmenuobj.contentmeasure+obj.offsetHeight;
		}
	}
	return edgeoffset
}

function populatemenu(what)
{
	if (ie4||ns6)
	{
		var menuStart = "";
		menuStart = menuStart + '<div id=\"ItemMenu\">';
		//menuStart = menuStart + '<table width=\"149\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" bgcolor=\"#FFFFFF\">';
		//menuStart = menuStart + '<tr>';
		//menuStart = menuStart + '<td><img src=\"img_sistema/menu/top.gif\"></td>';
		//menuStart = menuStart + '</tr>';
		//menuStart = menuStart + '<tr>';
		//menuStart = menuStart + '<td background=\"img_sistema/menu/fundo.jpg\">';
		//menuStart = menuStart + '<table width=\"142\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" align=\"center\">';
		//menuStart = menuStart + '<tr>';
		//menuStart = menuStart + '<td>';

		var menuEnd = ""
		//menuEnd = menuEnd + '</td>';
		//menuEnd = menuEnd + '</tr>';
		//menuEnd = menuEnd + '</table>';
		//menuEnd = menuEnd + '</td>';
		//menuEnd = menuEnd + '</tr>';
		//menuEnd = menuEnd + '<tr>';
		//menuEnd = menuEnd + '<td><img src=\"img_sistema/menu/fim.gif\"></td>';
		//menuEnd = menuEnd + '</tr>';
		menuEnd = menuEnd + '</div>';

		dropmenuobj.innerHTML = menuStart + what.join("") + menuEnd;
		
		document.getElementById('ifrFix').style.height	= dropmenuobj.offsetHeight + 'px';
		document.getElementById('ifrFix').style.width	= dropmenuobj.offsetWidth + 'px';
	}
}


function dropdownmenu(obj, e, menucontents, menuwidth)
{
	if (window.event)
	{
		event.cancelBubble = true;
	}
	else if (e.stopPropagation)
	{
		e.stopPropagation();
	}
	clearhidemenu();
	dropmenuobj = document.getElementById? document.getElementById("dropmenudiv") : dropmenudiv;
	populatemenu(menucontents)

	if (ie4||ns6)
	{
		showhide(dropmenuobj.style, e, "visible", "hidden", menuwidth);
		dropmenuobj.x			= getposOffset(obj, "left");
		dropmenuobj.y			= getposOffset(obj, "top");
		dropmenuobj.style.left	= dropmenuobj.x-clearbrowseredge(obj, "rightedge")+"px";
		dropmenuobj.style.top	= dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px";
		
		document.getElementById('ifrFix').style.left	= dropmenuobj.style.left;
		document.getElementById('ifrFix').style.top		= dropmenuobj.style.top;
	}
	return clickreturnvalue()
}

function clickreturnvalue()
{
	if (ie4||ns6)
	{
		return false;
	}
	else
	{
		return true;
	}
}

function contains_ns6(a, b)
{
	while (b.parentNode)
	{
		if ((b = b.parentNode) == a)
		{
			return true;
		}
	}
	return false;
}

function dynamichide(e)
{
	if (ie4&&!dropmenuobj.contains(e.toElement))
	{
		delayhidemenu();
	}
	else if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
	{
		delayhidemenu();
	}
}

function hidemenu(e)
{
	if (typeof dropmenuobj!="undefined")
	{
		if (ie4||ns6)
		{
			dropmenuobj.style.visibility = "hidden";
			document.getElementById('ifrFix').style.display = 'none';
		}
	}
}

function delayhidemenu()
{
	if (ie4||ns6)
	{
		delayhide = setTimeout("hidemenu()",disappeardelay)
	}
}

function clearhidemenu()
{
	if (typeof delayhide!="undefined")
	{
		clearTimeout(delayhide);
	}
}

if (hidemenu_onclick=="yes")
{
	document.onclick = hidemenu;
}