I was able to get the link to open in the existing window by deleting the target window name in the code( ie "_blank") But I still can't get it to open in a new browser window.

on (release) {
myLocation = "http://www.mapquest.com/directions/main.adp?go=1&do=nw&rmm=1&pn1x=&a1x=&c1x=&s1x=&z1x =&un=m&cl=EN&qq=hltF3hzNT9tNhURP0HLlhh9UYBmHRqyBce g4Gkon14D8uew Lk7pjHQ%253d%253d&ct=NA&rsres=1&1y=US&1ffi=&1l=&1g =&1pl=&1v=&1n=&1pn=&1a=&1c=&1s=&1z=&2y=US&2ffi=&2l =&2g=&2pl=&2v=&2n=&2pn=&2a=194+West+Ashland+Street &2c=doylestown&2s=pa&2z=&r=f";
getURL(myLocation);
}