JavaScript - Check What Page Has Loaded?

Question

Is there a way to ask JavaScript what web page is currently loaded?

Example:

if(page loaded == index.php){
   do something
}
else if(page loaded == contact.php){
   do something else
}

Thanks

Answer 1

var sPath = window.location.pathname;
var sPage = sPath.substring(sPath.lastIndexOf('/') + 1);
if(sPage == "index.php"){
   do something
}
else if(sPage  == "contact.php"){
   do something else
}