function hide()
{
	var showSubNav;
	
	showSubNav = document.getElementById('idSubNav').style.display;

	if (showSubNav == 'none')
	
	{
		document.getElementById('idSubNav').style.display = 'block';
	}
	else
	{
		document.getElementById('idSubNav').style.display = 'none';
	}
}

function textCounter(field,cntfield,maxlimit) 
{
    if (field.value.length > maxlimit)
    { 
        // if too long...trim it!
        field.value = field.value.substring(0, maxlimit);
    }
    else
    {
        // otherwise, update 'characters left' counter
        var label = document.getElementById(cntfield);
        label.innerHTML = maxlimit - field.value.length;
    }
}