function returnObjById(id) {
	if (document.getElementById)
		var returnVar = document.getElementById(id);
	else if (document.all)
		var returnVar = document.all[id];
	else if (document.layers)
		var returnVar = document.layers[id]; 
	return returnVar; 
}


function ExecFunc01() {
	
	var btnEnviar=returnObjById('btnEnviar');
	btnEnviar.disabled=true;
	
	new Ajax.Request('index.php',
		{
		method:'post',
		parameters: $('frecomend').serialize(true),
		onSuccess: function(transport) {
			var response = transport.responseText || "no response text";
			if (response!="no response text") {
				                               if (response=='OK') {
												   var formObj=returnObjById('frecomend');
												   formObj.fde.value='';
												   formObj.fpara.value='';
												   btnEnviar.disabled=false;
												   showHideRecomend();
												   alert("Mensagem enviada com sucesso.");
											   } else {
												   btnEnviar.disabled=false;
												   alert(response);
											   }
			                                  }
			},
		onFailure: function() { return false; }
		});
}

var recomendStat=false;

function showHideRecomend() {

   if (recomendStat) {
	   recomendStat=false;
	   toggleLayer('recomendar','h','b');
   } else {
	   recomendStat=true;
	   toggleLayer('recomendar','s','b');
   }

}

function toggleLayer(_w,_h,_d) {

   var isIE=document.all?true:false;
   var isDOM=document.getElementById?true:false;
   var isNS4=document.layers?true:false;

   var display=(_d=='b') ? 'block':'inline';

  if (isDOM)
  {
    if (_h=='s') { document.getElementById(_w).style.display = display; document.getElementById(_w).style.visibility='visible'; }
    if (_h=='h') { document.getElementById(_w).style.display = 'none'; document.getElementById(_w).style.visibility='hidden'; }
  }
  else if (isIE) {
    if (_h=='s') { eval("document.all."+_w+".style.display='"+display+"';"); eval("document.all."+_w+".style.visibility='visible';"); }
    if (_h=='h') { eval("document.all."+_w+".style.display='none';"); eval("document.all."+_w+".style.visibility='hidden';"); }
  }
  else if(isNS4)
  {
    if (_h=='s') { eval("document.layers['"+_w+"'].display='"+display+"';"); eval("document.layers['"+_w+"'].visibility='show';"); }
    if (_h=='h') { eval("document.layers['"+_w+"'].display='none';"); eval("document.layers['"+_w+"'].visibility='hide';"); }
  }
}