function checar(busca) {
	 var i = 0;				
	 var j = 'Para fazer uma busca você precisa escrever uma palavra\n\n';				
	 if (busca['q'].value.length == 0) {			 
		i++;
	 }					 
	 if (i > 0) {				
	  alert(j);				
	  return false;				
	 } else {				
	  return true;				
	 }				
}
				


//INICIO DROPDOWN SCRIPT FOR IE 6.0
startList = function() {
if (document.all&&document.getElementById) {
navRoot = document.getElementById("nav");
for (i=0; i<navRoot.childNodes.length; i++) {
node = navRoot.childNodes[i];
if (node.nodeName=="LI") {
node.onmouseover=function() {
this.className+=" over";
  }
  node.onmouseout=function() {
  this.className=this.className.replace(" over", "");
   }
   }
  }
 }
}
window.onload=startList;
//FIM DROPDOWN SCRIPT FOR IE 6.0
//---------------------------------------------------------------------------------------------------------
function MM_findObj(n, d) { 
  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_showhidelayers() { 
  var i,p,v,obj,args=mm_showhidelayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function goback() {
    history.go(-1);
}

//---------------------------------------------------------------------------------------------------------

var tam = 11;
function mudaFonte( tipo )
{
  if( tipo == 'mais' )
  {
    if( tam < 17 ) tam += 2 ;    			 
  }
  else
  {
    if( tam > 9 ) tam -= 2 ;
  }
  if( document.getElementById( 'mudaFonte' ) )
    mudaFonteRecursiva( tipo , document.getElementById( 'mudaFonte' ) ) ;

  if( document.getElementById( 'mudaFoto' ) )
    mudaFonteRecursiva( tipo , document.getElementById( 'mudaFoto' ) ) ;  
}

function mudaFonteRecursiva( tipo , domElement )
{		
  for( var i = 0 ; i < domElement.childNodes.length ; i++ )
  {
    mudaFonteRecursiva( tipo , domElement.childNodes.item( i )  ) ;
  }
  if( domElement.style )
    domElement.style.fontSize = tam+'px';
}

//---------------------------------------------------------------------------------------------------------

function toggleBox(szDivID, iState, iState2, iState3, iState4) // 1 visible, 0 hidden
{
    if(document.layers)	   //NN4+
    {
       document.layers[szDivID].visibility = iState ? "show" : "hide";
	   document.layers[szDivID].height = iState2 ? "110px" : "0";
	   document.layers[szDivID].font = iState3 ? "13px" : "0";	   
    }
    else if(document.getElementById)	  //gecko(NN6) + IE 5+
    {
        var obj = document.getElementById(szDivID);
        obj.style.visibility = iState ? "visible" : "hidden";
		obj.style.height = iState2 ? "110px" : "0";
		obj.style.font = iState3 ? "13px" : "0";		
    }
    else if(document.all)	// IE 4
    {
        document.all[szDivID].style.visibility = iState ? "visible" : "hidden";
		document.all[szDivID].style.height = iState2 ? "110px" : "0";
		document.all[szDivID].style.font = iState3 ? "13px" : "0";		
    }
}


//---------------------------------------------------------------------------------------------------------



//---------------------------------------------------------------------------------------------------------



//---------------------------------------------------------------------------------------------------------



//---------------------------------------------------------------------------------------------------------