function trim(str) {
	return str.replace(/^\s+|\s+$/g, '');
}

function restoreSearchPlaceholder(e, placeholdertext) {
	if (e.value == "") {
		e.value = placeholdertext // reset "Search" text
		e.className = "searchgrey" // change black -> grey
	}
}
function clearSearchPlaceholder(e, placeholdertext) {
	if (e.value == placeholdertext) {
		e.value = ""; // remove "Search" text
		e.className = "searchblack"; // change grey -> black
	}
}
/*
var d = new Date();
var bg_scroll_interval_ms = 400;
var bg_scroll_offset      = Math.round(d.getTime() / 400.0) % 1147;

function scrollBackground() {
    bg_scroll_offset += 0.1;
    h = document.getElementById("header");
    if (h == null) {
        setTimeout("scrollBackground()", 1);
    } else {
        setInterval("scrollBackground()", bg_scoll_interval_ms);
        h.style.backgroundPosition = "0"+bg_scroll_offset+"px";
    }
}
scrollBackground();
setTimeout("scrollBackground()", 1);;
*/