javascript Regex for Absolute AND relative URl -

javascript Regex for Absolute AND relative URl -

is there regex validate both absolute url , relateve url javascript.

i have next regex works absolute url except part making http part mandatory. want optional.

here regex:

/(http|ftp|https):\/\/[\w-]+(\.[\w-]+)+([\w.,@?^=%&:\/~+#-]*[\w@?^=%&\/~+#-])?/;

thanks

quick answer, modified arun's reply take '/page', '/page/subpage', 'page/subpage'

/(\/?[\w-]+)(\/[\w-]+)*\/?|(((http|ftp|https):\/\/)?[\w-]+(\.[\w-]+)+([\w.,@?^=%&:\/~+#-]*[\w@?^=%&\/~+#-])?)/gi

but in actually, validate url regexp never esay. lots of border case, './page', '../page' etc.

analyse requirement carefully, write downwards major test cases, write regexp pass them all. , careful performance.

javascript regex validation url-validation