Grab URL Var and use in link

Hello!

I need code that will take the variable (8KWM2MPUSCMU4) from this link:

http://laricketson.com/life-changing-webinar/?LARicketson&IP=8KWM2MPUSCMU4

and add it to the end of my button link:

https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=xxx
(in place of the x's.)

The code will be close to this I think, but I am not sure how to implement. Please advise:

var first = getUrlVars()["ip"];

alert(first);

function getUrlVars() {
var vars = {};
var parts = window.location.href.replace(/[?&]+([^=&]+)=([^&#]*)/gi, function(m,key,value) {
vars[key] = value;
});
return vars;
}

Can anyone help? Should only take a few minutes. Thank you!

 

Is laricketson.com your website? You can do it with PHP with $_GET. Explain technologies you are using.

is 8KWM2MPUSCMU4 always this long? string with known number of characters at the end of URL?

 

var inputUrl = "http://laricketson.com/life-changing-webinar/?LARicketson&IP=8KWM2MPUSCMU4",
   outputUrl = "https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=xxx";
 
  function getID(inputUrl) {
  return inputUrl.substring(inputUrl.indexOf("IP=") + 3);
  }
 
  function putId(IdToAdd, outputUrl){
     return outputUrl.replace("xxx", IdToAdd);
  }
 
 
alert(putId(getID(inputUrl), outputUrl));

Code (markup):

 

Hi! "IP=8KWM2MPUSCMU4" shows that the var name is IP, not 8KW... So you need to take core of the IP variable. If i were you i would a regular expression like:

url = window.location.href;
var expr = /IP=([^&]+)/;
result = url.match(expr);
alert(result);

Code (markup):

The result might be in result[1], you can check what the alert returns