function ShowAuth(){	
		var Login = '#dialog';
		var Mask = '#mask';
	
		var maskHeight = $(document).height();
		var maskWidth = $(window).width();
	
		$(Mask).css({'width':maskWidth,'height':maskHeight});
		
		$(Mask).show();	
	
	   var winH = $(window).height();
	   var winW = $(window).width();
              
//	   $(Login).css('top',  winH/2-$(Login).height()/2);
//	   $(Login).css('left', winW/2-$(Login).width()/2);
	
		$('select, object, embed, iframe, param').css('visibility', 'hidden');
		$(Login).show();

        return false;
};
	
function CloseAuth(){
	var Login = '#dialog';
	var Mask = '#mask';
		
	$(Login).hide();
	$(Mask).hide();

	$('select, object, embed, iframe').css('visibility', 'visible');
	
	return false;
};

function getCookie(name) {
var dc = document.cookie;
var prefix = name + "=";
var begin = dc.indexOf("; " + prefix);
if (begin == -1) {
begin = dc.indexOf(prefix);
    if (begin != 0) return null;
    } else begin += 2;
var end = document.cookie.indexOf(";", begin);
    if (end == -1)
    end = dc.length;
    return unescape(dc.substring(begin + prefix.length, end));
}