如何将变量从一个页面上的输入框传递到另一个页面并使用此信息在第2页上执行搜索？

I'm sure the answer to this is easy, but I'm a php/javascript noob, hence my question. The first three pieces of code, ending with "echo $_POST['new_search_text'];", works visually perfectly, but now I want to figure out how to get the input entered in the first section's form passed and used for the search criteria on my search page (the search page code starts with "{include file='header.tpl'}" and ends with "{include file='footer.tpl'}"). I'd like it so the info passed automatically searches on the search page as if I had typed it there directly and hit "search" and then have it display the results on the search page. I'm using smarty templates, and have also included the back bone PHP code from my search page (starting with "$page = "search";"). I can't use Jquery as it interferes with other code, but I imagine the solution is rather straightforward.I'm sure the answer to this is easy, but I'm a