How to extract from a URL and append to a link (javascript?)

[jimFDAC]

Hi-
I would like to extract a value from the displayed url in the address, i.e. the 222 from
http://www.virtual.com/test.htm?sid=22 2

I now need to hold that value in a variable
var XXX= 222 for example
and dynamically append it to links on the page (sometimes all of the links, other times only some of the links)... this value XXX is different for every incoming link landing on this page.

The new link needs to be constructed as:
http://www.virtual.com/newpage.htm?sid = + XXX

so the new link works as if it were:
<a href=http://www.virtual.com/newpage.htm?sid =222>newlink</a>

What is the proper syntax please? I can only do this via html or javascript (no php).

Thanks in advance for the help-
Jim

[r035198x]

Hi-
I would like to extract a value from the displayed url in the address, i.e. the 222 from
http://www.virtual.com/test.htm?sid=22 2

I now need to hold that value in a variable
var XXX= 222 for example
and dynamically append it to links on the page (sometimes all of the links, other times only some of the links)... this value XXX is different for every incoming link landing on this page.

The new link needs to be constructed as:
http://www.virtual.com/newpage.htm?sid = + XXX

so the new link works as if it were:
<a href=http://www.virtual.com/newpage.htm?sid =222>newlink</a>

What is the proper syntax please? I can only do this via html or javascript (no php).

Thanks in advance for the help-
Jim

Just have a look at string variables. There are a lot of methods available for use with strings

[johnhjohn]

To get the value after the ?sid and to assign it to a variable you could use the following:

var xxx = window.loaction .search.substr( 5);

This will make xxx equal to 222 (if I remember correctly). I am not sure what you are saying that you want to do from there, but I hoped I helped.

[jimFDAC]

To get the value after the ?sid and to assign it to a variable you could use the following:

var xxx = window.loaction .search.substr( 5);

This will make xxx equal to 222 (if I remember correctly). I am not sure what you are saying that you want to do from there, but I hoped I helped.

After I am able to assign the value 222 in variable XXX, I want to append it to existing links on that page so I guess the question becomes...

How do I append this variable value to the end of a url? This link
<a href="http://www.virtual.com/newpage.htm?sid =">pagelink</a> would need to have the 222 value of XXX added to the end of the url, so it reads
<a href="http://www.virtual.com/newpage.htm?sid =222">pagelink</a>

Can something be written to assign this?
Thx- Jim

[r035198x]

After I am able to assign the value 222 in variable XXX, I want to append it to existing links on that page so I guess the question becomes...

How do I append this variable value to the end of a url? This link
<a href="http://www.virtual.com/newpage.htm?sid =">pagelink</a> would need to have the 222 value of XXX added to the end of the url, so it reads
<a href="http://www.virtual.com/newpage.htm?sid =222">pagelink</a>

Can something be written to assign this?
Thx- Jim

You could submit through a form.

[HTML]<a href="" onClick = "javascript:doc ument.forms['formName'].submit()">[/HTML]



onSubmit of the form call a method which sets the action value of the form
i.e
[HTML]fromName.action = "http://www.virtual.com/newpage.htm?sid =" + XXX;[/HTML]

[acoder]

After I am able to assign the value 222 in variable XXX, I want to append it to existing links on that page so I guess the question becomes...

How do I append this variable value to the end of a url? This link
<a href="http://www.virtual.com/newpage.htm?sid =">pagelink</a> would need to have the 222 value of XXX added to the end of the url, so it reads
<a href="http://www.virtual.com/newpage.htm?sid =222">pagelink</a>

Can something be written to assign this?
Thx- Jim

To get the string that you require, use substr and indexOf:

var str = location.href.substr(location.href.indexOf("?sid=")+5);

The 5 will add onto the position of the ? giving you the number only.

To add to the end of a URL is easy. Use javascript to write to the screen:

document.write('<a href="http://www.virtual.com/newpage.htm?sid='+str+'">pagelink</a>');

The str string is added to the url after sid= (+ is the string concatenation operator).