opening a new window from php script

I am working on CMS designed to those who are unfamiliar with a computer world and I want to offer a task where on a push of a button it will save current working page in textarea/s and open this page in a new tab or in a new window. I googled some, but am still not sure how can I do it. Do I have to use target="_new" - I can not do this - I am working this for my University seminar and it has to be valid HTML5. Please help me improve my plan 1. I check wheter the user is using windows, linux, mac and then show appropriate possibility of all browsers for the targeted platform (WIN:IE,SA,FF,CH,OP, LINUX:FF.CHROMIUM and I need help for the mac also besides SA and FF what does it have among browsers?) 2. When the browser clicks button with the image of browsers inside anchor I target _new and location of the current file ?1 How can I offer option to open a new window not a new tab? ?2 How can I avoid the target attribute? ?3 How can I make a click on an image to produce action - or what do You suggest me to use - I would prefer img element not button with an image - how can I do this? Once I will finish it I will offer here software to everybody so I will be able to get some response and improve it and this is one of the major problems otherwise it is already functional. Please help me, thanks in advance - or ? You think I could do this better in JS? -- When the sun rises I receive and when it sets I forgive -> http://moj.skavt.net/gleskovs/ Always in Heart, Grega Leskovšek