help with how is web page displayed in firefox and IE

[blagojkk]

Hello. First of all I would like to tell that I'm not web designer so I had to ask this question, and I hope that someone can help me. I have this webpage www.demobendovi.net and when i open this page in FireFox everything is ok. But when i open it in IE i can not see this page like it should be. I do not know how to explain but there if in FireFox this page is displayed in a full screen in IE is not and there are also some unused space at the right side of the page. I hope you understand whet I'm talking about. If not please open this link http://demobendovi.net/bendovi_lista/bendovi_lista.php and i thing you will undestand. I think that there is some standard html code that needs to be added it to this script so the script will be abe to recognize if it is open with IE or with FireFox etc... But I do not knoe which code that would be.

Thanks