<form id="frm_teste" name="frm_teste" method="post" action="">
<head>
<title></title>
</head>
<body>
<p>
<input type="button" Class="buttonnew" style="width:110;height:22" id="botao-consultar" name="botao-consultar" value="Consultar" >
<input name="p_check_desabilitar" type="checkbox" onchange="desabilitar()" /> </span> Desabilitar Botão</p>
</body>
</form>
<script type="text/javascript" src="/jscripts/jquery/jquery-1.6.3.min.js"></script>
<script type="text/javascript">
function desabilitar()
{
if (document.frm_teste.p_check_desabilitar.checked == true)
{
document.getElementById("botao-consultar").disabled = "disabled";
}
else
{
document.getElementById("botao-consultar").disabled = false;
}
}
</script>
</html>