Posted By

1man on 03/08/07

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url
query

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Last Edited at 03/08/07 02:55am

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Query Variable Function

/ Published in: JavaScript

This function extracts a value from a url. Very useful for tracking codes. For example, you have a url http://your.url/?source=666999, and you need the source number to be placed into a variable. Use the code below.

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Copy this code and paste it in your HTML

variable = getQueryVariable("what you want to extract");//e.g "source"
 
function getQueryVariable(variable) {
  var query = window.location.search.substring(1);
  var vars = query.split("&");
  for (var i=0;i<vars.length;i++) {
    var pair = vars[i].split("=");
    if (pair[0] == variable) {
      return pair[1];
    }
  } 
}