simple quick & dirty userscript for fast planet switch

stargate-galaxys.user.js

// ==UserScript==
// @match http://*.stargate-galaxys.com/*
// ==/UserScript==
var elements = new Array(), 
     currentIndex = 0, 
     selectElement = document.getElementById('planetid'), 
     currentValue = selectElement.value, 
     optionElements = selectElement.getElementsByTagName('option'), 
     formElement = document.getElementById('form');
for(var i=0;i<optionElements.length;i++) {
    var val = optionElements[i];
    if(val.value == currentValue) {
        currentIndex = i; 
    }    
};

var prefix = document.createElement('span');
if(currentIndex !== 0) {
    prefix.innerHTML =  '&lt&lt;';
    prefix.value = currentIndex - 1; 
}
var suffix = document.createElement('span');
if(currentIndex < optionElements.length-1) {
    suffix.innerHTML = '&gt;&gt;';
    suffix.value = currentIndex + 1;   
}   

function onClick() {
   var ele = optionElements[this.value];
   selectElement.value = ele.value;
   selectElement.onchange();   
}
suffix.onclick = onClick;
prefix.onclick = onClick;
formElement.insertBefore(prefix, selectElement);
formElement.insertBefore(suffix, selectElement.nextElementSibling);