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 directions = document.getElementById("directions");
	var inputs = directions.getElementsByTagName("input");
	var s1;							
	var s2;
	
	for ( var i = 0; i < inputs.length; i++ )
	{
		if ( inputs[i].name == "add1" )
		{
			s1 = trim(inputs[i].value);	
		}
		else if	( inputs[i].name == "add2" )
		{
			s2 = trim(inputs[i].value);
		}
	}
					
	var y_url="http://maps.yahoo.com/index.php#mvt=m&q2=2700+E.+29th+Street+Suite+330+-+Bryan%2C+Texas+77802+&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");
}