function mostra_menu(n) {
	var menus	= new Array('emp','neg','fer','cli','con');
	var qtdmenu	= menus.length;
	var obj;
	for(i=0; i<qtdmenu; i++){
		obj	= document.getElementById(menus[i]);
		if(obj.id == n){
			obj.style.display = 'block';
		}else{
			obj.style.display = 'none';
		}
	}
}

function esconde_menu(obj){
	var elem, vis;
	if( document.getElementById ) // this is the way the standards work
		elem = document.getElementById(obj);
	else if( document.all ) // this is the way old msie versions work
		elem = document.all[obj];
	else if( document.layers ) // this is the way nn4 works
		elem = document.layers[obj];
		vis = elem.style;
		// if the style.display value is blank we try to figure it out here
	if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
		vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
		vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}

function ControlaIframe (iframeWindow) {
	if (iframeWindow.document.height) {
		var iframeElement = parent.document.getElementById(iframeWindow.name);
		<!-- Verifica o tamnaho do documento -->
		iframeElement.style.height = iframeWindow.document.height + 'px';
		iframeElement.style.width = iframeWindow.document.width + 'px';
	}
	<!-- Aqui começa a verificação de tamanho do iframe em relação a pagina-destino -->
	else if (document.all) {
		var iframeElement = parent.document.all[iframeWindow.name];
		if (iframeWindow.document.compatMode && iframeWindow.document.compatMode != 'BackCompat') {
			iframeElement.style.height = iframeWindow.document.documentElement.scrollHeight + 5 + 'px';
			iframeElement.style.width = iframeWindow.document.documentElement.scrollWidth + 5 + 'px';
		}
		else {
			<!-- Se quizerem, podem alterar a dimensão do scroller-->
			iframeElement.style.height = iframeWindow.document.body.scrollHeight + 5 + 'px';
			iframeElement.style.width = iframeWindow.document.body.scrollWidth + 5 + 'px';
		}
	}
}


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];}}
}

function MM_findObj(n, d) { //v4.01
  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);
  if(!x && d.getElementById) x=d.getElementById(n); 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];}
}