// JavaScript Document
function formata(e,src,mask) {
	if(window.event) { _TXT = e.keyCode; } 
		else if(e.which) { _TXT = e.which; }
	if((_TXT > 47 && _TXT < 58) || (_TXT == 13)) { 
  		var i = src.value.length; var saida = mask.substring(0,1); var texto = mask.substring(i)
  	if (texto.substring(0,1) != saida) { src.value += texto.substring(0,1); } 
     	return true; } else { if (_TXT != 8) { return false; } 
  	else { return true; }
	}

	}

function pulacx(atual,proxima,limite) {  
		
	if(document.getElementById(atual).value.length >= limite)
		{
		document.getElementById(proxima).focus();				
		}
	}