function Asc(string){
	var symbols = " !\"#$%&'()*+'-./0123456789:;<=>?@";
	var loAZ = "abcdefghijklmnopqrstuvwxyz";
	symbols += loAZ.toUpperCase();
	symbols += "[\\]^_`";
	symbols += loAZ;
	symbols += "{|}~";
	for(i=0;i<66;i++){
		symbols += " ";
	}	
    symbols += "ÁÂÃ   Ç ÉÊ  Í     ÓÔÕ    Ú";
	var loc;
    loc = symbols.indexOf(string);
	if (loc > -1)	{ 
		Ascii_Decimal = 32 + loc;
		return (32 + loc);
	}
	return (0);
}

function lcase(evt){
    if(Asc(Chr(evt.keyCode).toLowerCase())==0 || evt.keyCode==32)
	   return false;
	else{
       evt.keyCode=Asc(Chr(evt.keyCode).toLowerCase());  
       return true;
	}
}

   function validaLogin(){
       /*if(document.frm.usuario.value==""){
          alert("Usuário inválido !");
          document.frm.usuario.focus();
          return;
       }*/
       if(!IsEmail(document.frmLogin2.email.value)){
          alert("E-mail Inválido !");
          document.frmLogin2.email.focus();
          return;            
       }			   
       if(document.frmLogin2.senha.value==""){
          alert("Senha inválida !");
          document.frmLogin2.senha.focus();
          return;
       }
       document.frmLogin2.acao.value="entrar";
       document.frmLogin2.submit();
    }
   function sair(){
	   if(confirm("Deseja sair realmente ?")){
          document.frm.acao.value="sair";
	      document.frm.submit();
	   }
   }	
   var inicio=false;
   function home(){
      inicio=true;
      cont="<br><br><br><br><br>"
      cont+="<table border='0' align='center' cellpadding='0' cellspacing='0'>";
      cont+="<tr>";
      cont+="<td>&nbsp;</td>";
      cont+="</tr>";
      cont+="</table>"	      
      document.getElementById('conteudo').innerHTML = cont;
   }
   function mostraPagina(url){
   	   inicio=true;
	   larg=parseInt(screen.height)-338;
	   cont="<table border='0' align='left' cellpadding='0' cellspacing='0'>";
	   cont+="<tr><td><iframe id='iframe' src='./"+url+"' scrolling='auto' width='656px' height='"+larg+"' allowtransparency='true' frameBorder='no' style='margin-top:0px;'></iframe></td></tr>";
       cont+="<tr><td>&nbsp;</td></tr>"	  
       cont+="</table>"
	   document.getElementById('conteudo').innerHTML = cont;	  	  	   
    }