javascript cookies

[bloke]

Hello!

My ignorance now turns to javascript!

Ok, here goes. I currently use js to open a window thus:

<script language="javascript">
function openFile(jsVar)
{
window.open(jsVar, "File", "toolbars=no, scrollbars=yes, height=600, width=450, resizable=yes, left=250, top=70");
}
</script>

<tr bgcolor="#ffffff" onmouseover="this.bgColor = '#C0C0C0';window.status=''" onmouseout="this.bgColor = '#ffffff'">
<td class="ContentDetail">
<a href="javascript:;" class="ContentDetail" onClick="openFile('<%=strURL%>');"><%=rscorres("document_name")%></a>
</td>
</tr>

Which is fine. However, what I need to do is when the user clicks on this link to open the window, a cookie is also set with a variable name and a variable value.

To cut a long story short (too late), I need to indicate that a user has read a particular document or not.

Any help will be muchly appreciated.

Regards

[Khalid Ali]

To do something like that..

1.When a link is clicked..first read cookie to see if this particular value is set already?
2. if not then set a new cookie3. else do not open the document or open the doc - depends on what you want to do...

Here is a simple cookie script...let me know if you are not able to implement it in your situation....

http://68.145.35.86/skills/javascripts/SimpleLoginCookieScript.html

[bloke]

Woah!!

Just looked at the source of your page - bit over my head to be honest. Javascript aint my strongest suit.

I need to display an icon in a results page depending on whether or not the user has already read the document.

Any chance you could wizz out the relevant bits of code for me?!

Cheers

[Khalid Ali]

I guess I'll be able to put some together for you..
Post the actual webpages link here...so that I can see your real code and structure and insert the required pieces

[bloke]

Intranet I'm afraid. I want the cookie name to contain the user id and document id (eg BobH4321 - made up of userid BobH & document id 4321) and I guess the value can just be true or 1 or something.

I was thinking something along the lines of:

<script language="javascript">
function openFile(jsVar)
{
document.cookie["userid+docid" = "true"; expires = "December 31, 2010";]
window.open(jsVar, "File", "toolbars=no, scrollbars=yes, height=600, width=450, resizable=yes, left=250, top=70");
}
</script>

<tr>
<td class="ContentDetail"> <a href="javascript:;" class="ContentDetail" onClick="openFile('<%=strURL%>');"><img src="../images/magnify.gif" border="0" alt="click here to view this document"></a> </td>
<td align="center">
<%If request.cookies("userid+docid") = true Then%>
<img src="../images/envread.gif" width="16" height="11" alt="" border="0">
<%Else%>
<img src="../images/envunread.gif" width="16" height="11" alt="" border="0">
<%End If%>
</td>
</tr>

...but not sure how I could pass the variables into the cookie.

Or am I talking complete nonsense!! Ha ha!

[Khalid Ali]

use the following javascript and get rid of the one you already have..(unless there is some more which is not shown in this thread by you.


<script type="text/javascript">
<!--
var expireIn = 60 * 1000;
var expire = new Date();
var cookieName = "fileName";

function openFile(jsVar){
var userId = "BobH";
var docId = "4321";
var storedFile = GetCookie(cookieName);
if(storedFile!=(userId+docId)){
CreateCookie(userId+docId);
window.open(jsVar, "File", "toolbars=no, scrollbars=yes, height=600, width=450, resizable=yes, left=250, top=70");
}else{
alert("error message that file is already created");
}
}

/*
@param val Value to be put in cookie
*/
function CreateCookie (val) {
//want this cookie to expire in 30 days
//timesVisited +=1;
var thisVisit = new Date();
expire.setTime (expireIn + parseInt(expire.getTime())); //1 mins from now!
var WholeCookie = val;
document.cookie = cookieName+"=" + escape (WholeCookie) + "; expires=" + expire.toGMTString();
}

/*
@param CookieName is passed to get Cookie method to read a cookie
@return returns an array of values in the cookie separated by a ` character.
*/
function GetCookie (CookieName) {
var cname = CookieName + "=";
var i = 0;

while (i < document.cookie.length) {
var j = i + cname.length;
if (document.cookie.substring(i, j) == cname){
var leng = document.cookie.indexOf (";", j);
if (leng == -1) {
leng = document.cookie.length;
}
return (unescape(document.cookie.substring(j, leng))).split("`");
}
i = document.cookie.indexOf(" ", i) + 1;
if (i == 0) break;
}
}
//-->
</script>


This above will expire in 1 minute
take a look at the top at this line

var expireIn = 60 * 1000;

you will need to change it to the expiration time frame as you need.

You may want to read up at description at this link.

http://wp.netscape.com/newsref/std/cookie_spec.html

[bloke]

Hmmm. Ok, thanks. I'll see how I get on.

Appreciate your help.

Cheers

[Khalid Ali]

You are welcome...