function init() {
    // quit if this function has already been called
    if (arguments.callee.done) return;
    
    // flag this function so we don't do the same thing twice
    arguments.callee.done = true;
    
    // kill the timer
    if (_timer) {
        clearInterval(_timer);
        _timer = null;
    }
    
     
    getSingleLocation();
     
    // create the "page loaded" message
    // var text = document.createTextNode("Page loaded!");
    // var message = document.getElementById("message");
    // message.appendChild(text);
}
    
    /* for Mozilla */
    if (document.addEventListener) {
        document.addEventListener("DOMContentLoaded", init, false);
    }
    
    /* for Internet Explorer */
    /*@cc_on @*/
    /*@if (@_win32)
        document.write("<script id=__ie_onload defer src=javascript:void(0)><\/script>");
        var script = document.getElementById("__ie_onload");
        script.onreadystatechange = function() {
            if (this.readyState == "complete") {
                init(); // call the onload handler        
            }
        };
    /*@end @*/
    
    /* for Safari */
    if (/WebKit/i.test(navigator.userAgent)) { // sniff
        var _timer = setInterval(function() {
            if (/loaded|complete/.test(document.readyState)) {
                init(); // call the onload handler
            }
        }, 10);
    }
 

    
    
    /* for other browsers */
    window.onload = init;