function CreatePopup(url, height, duration, description, lifetime) {
    // Exit if the current browser has already received the popup, or
    // the browser is not supported (IE6).
    if (HasAlreadyReceivedPopup(description))
        return;
    
        $.get(url, function(data) {
            var popup = $(data)
			.appendTo("div.content");
            ShowPopup(description, lifetime, popup, duration);
        });
    
}

function ShowPopup(description, lifetime, popup, duration) 
{
    //popup.show();
    ReceivedPopup(description, lifetime);
}

function HasAlreadyReceivedPopup(description) {
    return document.cookie.indexOf(description) > -1; 
}

function ReceivedPopup(description, lifetime) { 
	var date = new Date();
	date.setDate(date.getDate() + lifetime);
	document.cookie = description + "=true;expires=" + date.toUTCString() + ";path=/";
}

function IsUnsupportedUserAgent() { 
	return (!window.XMLHttpRequest); 
}

function DestroyPopup() {
	$("#sliding_popup").hide();
}