function doClear(theText)
{if (theText.value == theText.defaultValue) theText.value = ""}

function Borrar()
	{document.Formulario.reset()} 

function Validar_id (Form)
	{var TodoOk=true;
		if ((Form.numerid.value.length<1) || (Form.numerid.value=="0") || (Form.numerid.value==""))
		{TodoOk=false;
		 alert ("Error: Introduzca nombre de USUARIO")}
		if ((Form.password.value.length<1) || (Form.password.value=="0") || (Form.password.value==""))
		{TodoOk=false;
		 alert ("Error: Introduzca la CONTRASEŅA")}
	if (TodoOk) 
	{return true}
	else 
	{return false}
	}