// JScript File

function trim(cadena) 
{ 
    for(i=0; i<cadena.length; )
	{
		if(cadena.charAt(i)==" ")
			cadena=cadena.substring(i+1, cadena.length);
		else
			break;
	}

	for(i=cadena.length-1; i>=0; i=cadena.length-1)
	{
		if(cadena.charAt(i)==" ")
			cadena=cadena.substring(0,i);
		else
			break;
	}
	
	return cadena;
}

function valida(source, clientside_arguments)
{
    var str = trim(igedit_getById(ResCre_TBContrato).getValue());
    clientside_arguments.IsValid=(str.length==17);
}