var xmlHttp;

function carregaBusca(){
   carregaArquivo('php/busca.php','&texto=' + document.getElementById("txt_busca").value);	
}

function carregaFale(){

   if ( document.getElementById("txt_nome").value == "" ) {
   
      if ( document.getElementById("txt_idm").value == 1 ) {
		  alert("Atenção, preencha o campo 'Nome'.");
	  }else{
		  alert("Atention, you must type the field 'Name'.");
	  }
	  
	  document.getElementById("txt_nome").focus();
   
   }else if ( document.getElementById("txt_email").value == "" ) {

      if ( document.getElementById("txt_idm").value == 1 ) {
		  alert("Atenção, preencha o campo 'E-mail'.");
	  }else{
		  alert("Atention, you must type the field 'E-mail'.");
	  }

 	  document.getElementById("txt_email").focus();

   }else if ( document.getElementById("txt_email").value.indexOf("@") == -1 || document.getElementById("txt_email").value.indexOf(".") == -1 ) {

      if ( document.getElementById("txt_idm").value == 1 ) {
         alert("Atenção, preencha corretamente o campo 'Email'.");
	  }else{
		 alert("Atention, you must type the field 'E-mail' correctly.");
	  }

	  document.getElementById("txt_email").focus();

   }else if ( document.getElementById("txt_msg").value == "" ) {

      if ( document.getElementById("txt_idm").value == 1 ) {
          alert("Atenção, preencha o campo 'Mensagem'.");
	  }else{
		  alert("Atention, you must type the field 'Message'.");
	  }

	  document.getElementById("txt_msg").focus();

   }else{
	   
     carregaArquivo('php/fale.php','&nome=' + document.getElementById("txt_nome").value + '&email=' + document.getElementById("txt_email").value + '&msg=' + document.getElementById("txt_msg").value );	
	 
   }
   
}

function carregaSecao(url,parametros){
    carregaArquivo(url,parametros);	    
}

function carregaArquivo(v_url,parametros) {
   var url = v_url + "?rnd=" + Math.random() + parametros;
   xmlHttp=GetXmlHttpObject(stateChanged);
   xmlHttp.open("GET", url , true);
   xmlHttp.send(null);  
}

function stateChanged() { 

	if ( xmlHttp.readyState == 4 || xmlHttp.readyState == "complete" ) { 
	   document.getElementById("DIV_Conteudo").innerHTML = xmlHttp.responseText;
 	} 
	
} 

function GetXmlHttpObject(handler)
{ 
var objXmlHttp=null

if (navigator.userAgent.indexOf("Opera")>=0)
{
alert("This example doesn't work in Opera") 
return 
}
if (navigator.userAgent.indexOf("MSIE")>=0)
{ 
var strName="Msxml2.XMLHTTP"
if (navigator.appVersion.indexOf("MSIE 5.5")>=0)
{
strName="Microsoft.XMLHTTP"
} 
try
{ 
objXmlHttp=new ActiveXObject(strName)
objXmlHttp.onreadystatechange=handler 
return objXmlHttp
} 
catch(e)
{ 
alert("Error. Scripting for ActiveX might be disabled") 
return 
} 
} 
if (navigator.userAgent.indexOf("Mozilla")>=0)
{
objXmlHttp=new XMLHttpRequest()
objXmlHttp.onload=handler
objXmlHttp.onerror=handler 
return objXmlHttp
}
}