function trim(str)
{  
	while(str.charAt(0) == (" ") )
	{  str = str.substring(1);
	}
	while(str.charAt(str.length-1) == " " )
	{  str = str.substring(0,str.length-1);
	}
	return str;
}

function to_y() {

	var s1 = trim(document.getElementById("directions").add1.value);							
	var s2 = trim(document.getElementById("directions").add2.value);
					
	var y_url="http://maps.yahoo.com/index.php#mvt=m&q2=Caldwell%2C+TX&q1=";
	
	
	
	if (s1.length > 0)
		y_url = y_url + s1.replace(" ","+");
	if (s2.length > 0)
		y_url = y_url + "+" + s2.replace(" ","+");
					
	window.open(y_url, "YahooMaps");
}