32 lines
987 B
JavaScript
32 lines
987 B
JavaScript
var once_per_session = 1
|
|
|
|
|
|
function get_cookie(Name) {
|
|
var search = Name + "="
|
|
var returnvalue = "";
|
|
if (document.cookie.length > 0) {
|
|
offset = document.cookie.indexOf(search)
|
|
if (offset != -1) { // if cookie exists
|
|
offset += search.length
|
|
// set index of beginning of value
|
|
end = document.cookie.indexOf(";", offset);
|
|
// set index of end of cookie value
|
|
if (end == -1) end = document.cookie.length;
|
|
returnvalue = unescape(document.cookie.substring(offset, end))
|
|
}
|
|
}
|
|
return returnvalue;
|
|
}
|
|
|
|
function alertornot() {
|
|
if (get_cookie('alerted') == '') {
|
|
loadalert()
|
|
document.cookie = "alerted=yes"
|
|
}
|
|
}
|
|
|
|
function loadalert() {
|
|
document.getElementById("introh").style.visibility = "visible";
|
|
}
|
|
if (once_per_session == 0) loadalert()
|
|
else alertornot() |