Links not working

Hey guys ,

I have a page index.html with 5 section one of them being contact , so the html is something like this :

<section id="contact">
 
 
</section>

now the above code is on my index.html .

now when i move to another page eg. backpage.html . on that page i have a link called contact us ,

i'd like that link to point back to the contact section in index.html ,

so i have the following code :

<a href="index.html/#contact">contact us</a>

, now that does't work ,

any suggestions.