append to url and refresh page

Question

I am looking to write a piece of javascript that will append a parameter to the current url and then refresh the page - how can I do this?

Answer 1

this should work (not tested!)

var url = window.location.href;    
if (url.indexOf('?') > -1){
   url += '¶m=1'
}else{
   url += '?param=1'
}
window.location.href = url;