I am trying to insert a page jump which needs to open a new section/tab on the same page

like shown here 

<http://www.ebay.com/itm/Sony-CDX-GT540UI-CD-MP3-Car-Audio-Receiver-Front-USB-Input-iPod-controls-/390406795334?pt=Car_Audio_In_Dash_Receivers&vxp=mtr&hash=item5ae60ef046>

you have shipping, payment, return policy etc. I am trying to put a link that says

Click Here To View Warranty Details right above the product pictures directly under where it says comes with a 1 year warranty. I am able to either have the tab opened when I click the link or have the page jump down to that section but not open the other tab.

Here is the code I am using 

```
<a href="nogo" onclick="return show('tab3')">Click Here To View Warranty Details</a>

```

but this will not do the page jump to the return policy it only opens the Returns Policy Tab without making the jump. What am I missing how or what else am I supposed to do? I have replaced the and jump the page but it doesn't happen. Thank you so much for all your help I really do appreciate it.

Below is a link to the code I am working with its a text file thanks again!

<https://www.dropbox.com/s/7cikzfk5u31vvec/Page%20Jump.txt>