function mudaBG(cor,obj) {

	obj.style.background = cor;

}



function exemplo(txt,cor,obj) {

	obj.value = txt;

	obj.style.color = cor;

}



function envia(frm) {

	document.getElementById(frm).submit();

}



function okEnter(frm,e) {

	var keynum;

	

	if(window.event) // IE

	  { keynum = e.keyCode; }

	else if(e.which) // Netscape/Firefox/Opera

	  { keynum = e.which; }

	

	if(keynum == 13) // Se for ENTER

	  { document.getElementById(frm).submit(); }

	else if(keynum != 13) // Se for ENTER

	  { return false; }

}



function soNum(campo){

    var digits = "0123456789";

    var campo_temp;

    for (var i=0;i<campo.value.length;i++){

      campo_temp=campo.value.substring(i,i+1)    

      if (digits.indexOf(campo_temp)==-1){

            campo.value = campo.value.substring(0,i);

            break;

       }

    }

}



function mostra(show,hide) {

	document.getElementById(show).style.display = "block";

	document.getElementById(hide).style.display = "none";

}






function mensagem(texto,status)
{	
	var msg  = texto;
			msg += "<p style='text-align:center;'><input type='button' value='Fechar' onclick=\"$('MENSAGEM').hide();\" /></p>";

	var obj = new Element('DIV', { 'id': 'MENSAGEM' }).hide().update(msg).absolutize();
	document.body.appendChild(obj);
	
	if(status==0) obj.addClassName('erro');
	else if(status==1) obj.addClassName('ok');
	
	obj.setStyle({ width: '350px', height: 'auto' });
	
	W = obj.getWidth();
	H = obj.getHeight();
	
	var posScroll = document.viewport.getScrollOffsets(); // posScroll[0] = HORZONTAL | posScroll[1] = VERTICAL;
	var alt = parseInt((posScroll[1]+(document.viewport.getHeight()/2))-(H/2));
	var lar = parseInt((document.viewport.getWidth()/2)-(W/2));
	
	obj.setStyle({ top: alt + 'px', left: lar + 'px' });
	
	Effect.Appear('MENSAGEM', {duration: 0.1});
}