function startMenu() {
	if (document.all&&document.getElementById) {
		navRoot = document.getElementById("globalnav");
		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", "");
				};
			}
		}
	}
}

function objAjax(){
   try {
      // Firefox, Opera 8.0+, Safari...
      ajaxObj=new XMLHttpRequest();
   } catch (e) {
      // Internet Explorer 6 e superior
      try {
         ajaxObj=new ActiveXObject("Msxml2.XMLHTTP");
      } catch (e) {
         // Internet Explorer 5.X
         try {
            ajaxObj=new ActiveXObject("Microsoft.XMLHTTP");
         } catch (e) {
            alert("Seu navegador não possui suporte ao AJAX!");
            return false;
         }
      }
   }   
   return ajaxObj;
}
//Usado para fazer busca de registro
//SEM ESTILO
function ajax(local, url, arquivo, textoCarregando) {
var ajaxObj = objAjax();
var estilo = "font-size:14px; font-weight:bold; '";

	ajaxObj.onreadystatechange=function() {
	
	  if(ajaxObj.readyState==1) {
       //  document.getElementById("escrevaCarregar").innerHTML = 'carregando';
	   	 var carregando = "<span "+estilo+">"+textoCarregando+"</span>"; 
		 document.getElementById(local).innerHTML = carregando ;
	  }
	  
	  if(ajaxObj.readyState==3) {
	   	 var carregando = "<span "+estilo+">"+textoCarregando+"</span>"; 
		 document.getElementById(local).innerHTML = carregando ;
	  }
   
      if(ajaxObj.readyState==4) {
		  if (ajaxObj.status == 200){	
         	document.getElementById(local).innerHTML = ajaxObj.responseText;
		  }else{
			document.getElementById(local).innerHTML = "<p id='msgErro'>Ocorreu um erro inesperavel.</p>";  
		  }
      }
   }
 
   ajaxObj.open("GET",arquivo+url,true);
  // ajaxObj.overrideMimeType("text/xml;charset=iso-8859-1");
   ajaxObj.send(null);
   
   return true;
}

function mascaraFloat(el){
	if (isNaN(el.value)){
		alert("Apenas valores numéricos.");
		el.value = "";
	}else{	
		if (el.value.length > 2){
			var part1="";
			var part2="";
			el.value = el.value.replace('.', '');	
			
			for (var i = 0; i < el.value.length; i++){
				if ( i <= el.value.length-3){
					part1 += el.value.charAt(i);
				}else{
					part2 += el.value.charAt(i);				
				}			
			}			
			el.value = part1+"."+part2;		
		}
	}
}	

function confirma(texto) {
	var confirmar = confirm(texto)
	if ( confirmar ){
		return true
	} else {
		return false
	}
}