var theTop=(screen.height/2)-(500/2);
var theLeft=(screen.width/2)-(640/2);

YAHOO.util.Event.addListener(window, "load", function() {
    window.setInterval("blinker()", 500);
});


function blinker() 
{
    var blinks = YAHOO.util.Dom.getElementsByClassName("blink");
    for (var i = 0; i < blinks.length; i++)
        blinks[i].style.visibility 
         = (blinks[i].style.visibility == "visible") ? "hidden" : "visible";
}

// http://www.somacon.com/p355.php
String.prototype.trim = function() {
    return this.replace(/^\s+|\s+$/g,"");
}
String.prototype.ltrim = function() {
    return this.replace(/^\s+/,"");
}
String.prototype.rtrim = function() {
    return this.replace(/\s+$/,"");
}