javascript cookies

@blokeJun 04.2003

Hello!

My ignorance now turns to javascript!

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

<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

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JavaScript

7 Comments(s) _↴

@Khalid_AliJun 04.2003 — #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

@blokeauthorJun 04.2003 — #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_AliJun 04.2003 — #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

@blokeauthorJun 04.2003 — #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_AliJun 04.2003 — #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.

<i>
 </i>&lt;script type="text/javascript"&gt;
 &lt;!--
 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 <span><code> character.
 */
 function GetCookie (CookieName) {
 var cname = CookieName + &quot;=&quot;;
 var i = 0;
 
 while (i &amp;lt; document.cookie.length) {
 var j = i + cname.length;
 if (document.cookie.substring(i, j) == cname){
 var leng = document.cookie.indexOf (&quot;;&quot;, j);
 if (leng == -1) {
 leng = document.cookie.length;
 }
 return (unescape(document.cookie.substring(j, leng))).split(&quot;</code></span>");
 }
 i = document.cookie.indexOf(" ", i) + 1;
 if (i == 0) break; 
 }
 }
 //--&gt;
 &lt;/script&gt;

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

@blokeauthorJun 05.2003 — #Hmmm. Ok, thanks. I'll see how I get on.

Appreciate your help.

Cheers

@Khalid_AliJun 05.2003 — #You are welcome...

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