var win;
function popWin(url, width, height){
    try { win.close(); } catch(e) {};
    win = window.open(url, "pw", "width="+width+",height="+height+",scrollbars=1");
    try { win.focus(); } catch(e) {};
}

function getV(arr) {
	var str = "";
	for(var i=0; i<arr.length; i++) str += "%" + arr[i];
	return unescape(str);
}