function js_onsubmit()
{
	var keyword = document.getElementById('keyword').value;
	var distance = document.getElementById('distance').value;
	if (isNaN(keyword))
	{
		alert('Please input a valid zip code');
		return false;
	}
	if (isNaN(distance))
	{
		alert('Please select a distance');
		return false;
	}
	return true;
}

function MM_openBrWindow(theURL,winName,features) 
{ //v2.0
	var keyword = document.getElementById('keyword').value;
	var distance = document.getElementById('distance').value;
	/*
	if (isNaN(keyword))
	{
		alert('Please input a valid zip code');
		return false;
	}
	*/
	if (isNaN(distance))
	{
		alert('Please select a distance');
		return false;
	}
	window.open(theURL+"?keyword="+keyword+"&distance="+distance,winName,features);
	return true;
}