2 pages in html : in the first one, there is an input box for stock symbol, a button search and a list displaying the values for a certain stock symbol.

the 2nd page displays the user's portfolio. the user can select a stock from the 2nd page, click on a button called details.the 1st page is opened with stock values of the selected stock.

now of course, values of stock are passed in the window url to the 1st page.
the problem is that i want to refresh the 1st page and remove all the values from the window ur in order for the 1st page to clear all values.

how do i do that???