// JavaScript Document

/* trim() para remover espaços em branco */
String.prototype.trim = function() { return this.replace(/^\s+|\s+$/, ''); };
/* __strip() para remover \t e \n do inicio da resposta do objeto XMLHttprequest */
String.prototype.__strip = function() { return this.replace(/^\t+\n+/, ''); };


/* preload gif */
preload_image_object = new Image();
image_url = new Array();
image_url[0] = "../img/snake_transparent.gif";
image_url[1] = "../img/b_edit.png";
image_url[2] = "../img/b_drop.png";
image_url[3] = "../img/choice-no.gif";
image_url[4] = "../img/choice-yes.gif";
image_url[5] = "../img/choice-yes-gray.gif";
image_url[6] = "../img/b_browse.png";


var i = 0;
for(i=0; i<=3; i++) {
	preload_image_object.src = image_url[i];
}

/* bloquearNaoNumerico */
function bloquearNaoNumerico() {
		if (event.keyCode == 34 || event.keyCode == 38 || event.keyCode == 39)	{
			event.keyCode = 0;
     	}

     	if ((event.keyCode < 48) || (event.keyCode > 57)) {
     		event.keyCode = 0;
     	}
 }
 
 
 function validaEmail(email) {
	 var pat = /^.+@.+\..{2,3}$/;
	 var emaildiv = email.match(pat);
	 if(emaildiv == null) {
		return false;
	} else {
		return true;
	}
 }
 
 
 /* valida cpf */
function checkcpf(num_cpf){
	num_cpf = num_cpf.toString().replace( ".", "" );
	num_cpf = num_cpf.toString().replace( ".", "" );
 	num_cpf = num_cpf.toString().replace( "-", "" );
 if (num_cpf == null){ return false; }
 if (num_cpf.length != 11){ return false; }
 for (i=0;i<num_cpf.length;i++){
   if (!((num_cpf.substring(i,i+1) >= '0') && (num_cpf.substring(i,i+1) <= '9'))){
     return false;
   }
 }
 num_cpf_dv=num_cpf.substring(9,11);
 num_cpf = num_cpf.substring(0,9);
 for (k=1;k<3;k++)
     {
      soma = 0;
      multi = 1;
      for (i=num_cpf.length-1;i>=0;i--)
          {
          multi++;
          soma += (parseInt(num_cpf.substring(i,i+1),10) * multi); 
           }
      resto = (soma % 11);
      dv =0;
      if (resto > 1)
         {
          dv= 11 - resto;
         }
      num_cpf +=dv; 
     }
return (num_cpf_dv == num_cpf.substring(9,11));
}