function invocaDialog(c1,c2,c3,c4,c5){ 
	var i = 0;
	//var j = 'Campos obrigatórios não preenchidos:<br>';
	var j="";
	var caracs = new Array ( '.', '/', '-', ':', '(', ')', ',' );
	
	if (window.document.frm_w3FormValidation.nome.value.length == 0) {
		j += ++i + ')'+ c1+'<br>';
	}
	if (window.document.frm_w3FormValidation.tel.value.length == 0) {
		j += ++i + ')'+c2+'<br>';
	}
	if (window.document.frm_w3FormValidation.email.value.length == 0) {
		j += ++i + ')'+c3+'<br>';
	}else if (window.document.frm_w3FormValidation.email.value.search(/([_A-Za-z0-9.+-]){1,}@([A-Za-z0-9-]){1,}\.([A-Za-z0-9.]){2,}$/) == -1) {
		j += ++i + ') Digite um E-mail v&aacute;lido <br>';
	}
	if (window.document.frm_w3FormValidation.assunto.value.length == 0) {
		j += ++i + ')'+c4+'<br>';
	}
	if (window.document.frm_w3FormValidation.mensagem.value.length == 0) {
		j += ++i + ')'+c5+'<br>';
	}
	
	$('#alert').jqm({
		overlay: 60,
		overlayClass: 'overlay',
		modal: false,
		trigger: true
	});
	$('#confirm').jqm({
		overlay: 60,
		overlayClass: 'overlay',
		modal: false,
		trigger: true
	});
	
	if (i > 0) {
		alert(j);
		return false;
	} else {
		window.document.frm_w3FormValidation.submit();
		return true;
	}
	
	//alert("Campos nao preenchidos"+nomeCamp+'\n\n\n'+telCamp+'\n'+emailCamp+'\n'+mensagemCamp, "contato.php");
	//alert("Alerta em JavaScript");
}
function alert(msg) {
  $('#alert')
    .jqmShow()
    .find('div.jqmAlertContent')
    .html("<!span>" + msg + "<!/span><a href='http://www.websitesa.com.br' target='_blank'><img border='0' src='img/websitesa.png' style='position:absolute; left:257px; top:6px; z-index:16'/></a>")
    .end()
    .find(':submit:visible')
    .click(function() {
    	$('#alert').jqmHide();
    });
}
function confirm(msg,callback) {
  $('#confirm')
    .jqmShow()
    .find('p.jqmConfirmMsg')
    .html("<img src='confirm.gif' /><span>" + msg + "</span>")
    .end()
    .find(':submit:visible')
    .click(function(){
        if(this.value == 'Sim')
          (typeof callback == 'string') ?
            window.location.href = callback :
            callback;
        $('#confirm').jqmHide();
    });
}