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];} } return(false); } Usage Example URL: http://www.example.com/index.php?id=1&image=awesome.jpg Calling getQueryVariable(“id”) – would return “1”. Calling getQueryVariable(“image”) – would return “awesome.jpg”.