function setCookie( name, value, expiredays )
{
	var todayDate = new Date();
	todayDate.setDate( todayDate.getDate() + parseInt(expiredays) );
	document.cookie = name + "=" + escape( value ) + "; path=/; expires=" + todayDate.toGMTString() + ";"
}
getCookie=function( name )
{
	var nameOfCookie = name + "=";
	var x = 0;
	while ( x <= document.cookie.length )
	{
		var y = (x+nameOfCookie.length);
		if ( document.cookie.substring( x, y ) == nameOfCookie ) {
			if ( (endOfCookie=document.cookie.indexOf( ";", y )) == -1 )
					endOfCookie = document.cookie.length;
			return unescape( document.cookie.substring( y, endOfCookie ) );
		}
		x = document.cookie.indexOf( " ", x ) + 1;
		if ( x == 0 ) break;
	}
	return "";
}
var popup_cookie_prefix = "popup_idx_";
checkPopup=function(idx){
	return (getCookiePopup(idx) != "done") ? true : false;
}
setCookiePopup=function(idx){
	setCookie(popup_cookie_prefix+idx, "done", 1);
}
getCookiePopup=function(idx){
	return getCookie(popup_cookie_prefix+idx)	;
}
openPopup=function(idx, w, h, x, y){
	h = h + 24;
	window.open(WEB_ZEN+'/popup/popup.php?idx='+idx, "popup"+idx, "width="+w+",height="+h+",top="+y+",left="+x+"");
}