Gets the users position, caching requests between position checks. Solves huge lag issue in chrome for android.

gistfile1.txt

var requestCallbacks = [],
    ready = true;
        
function getPosition(callback){
    requestCallbacks.push(callback);
    if(ready){
        ready = false;
        navigator.geolocation.getCurrentPosition(function(position){
            while(requestCallbacks.length){
                requestCallbacks.pop()(position);
            }
            ready = true;
        });
    }
}