function ajaxInit(url, id)
		{
		var xmlHttp;
		try
		  {
		  // Firefox, Opera 8.0+, Safari
		  xmlHttp=new XMLHttpRequest();
		  }
		catch (e)
		  {
		  // Internet Explorer
		  try
		    {
		    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		    }
		  catch (e)
		    {
		    try
		      {
		      xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		      }
		    catch (e)
		      {
		      alert("Seu navegador não suporta ajax");
		      return false;
		      }
		    }
		  }
		  xmlHttp.onreadystatechange=function()
		    {
		    if(xmlHttp.readyState==4)
		      {
		      if(id!=0)
			  {document.getElementById(id).innerHTML = xmlHttp.responseText;}
		      }
		    }
		  	xmlHttp.open("GET",url,true);
			xmlHttp.send(null);
		  }
		  
function ajaxPost(grava, campos)
{
	var ajax;
		try
		  {
		  // Firefox, Opera 8.0+, Safari
		  ajax=new XMLHttpRequest();
		  }
		catch (e)
		  {
		  // Internet Explorer
		  try
		    {
		    ajax=new ActiveXObject("Msxml2.XMLHTTP");
		    }
		  catch (e)
		    {
		    try
		      {
		      ajax=new ActiveXObject("Microsoft.XMLHTTP");
		      }
		    catch (e)
		      {
		      alert("Seu navegador não suporta ajax");
		      return false;
		      }
		    }
		  }
		  ajax.open("POST", grava);
		  ajax.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=iso-8859-1");
		  
		  ajax.send(campos);
		  }