Flicker on page transition, Firefox and the other browsers

Why do the pages of many websites flicker on page transition with almost all browsers except Firefox? View the pages of http://doeklascreation.hetklopt.nl, http://www.co-vet-linguist.nl and http://www.rug.nl, randomnly chosen. Google Chrome is the worst.
IE prior to version 9 allowed us to get rid of the flicker with certain meta tags (<meta http-equiv="Page-Enter" content="Alpha(opacity=100)" ><meta http-equiv="Page-Exit" content="Alpha(opacity=100)" > or <meta http-equiv="Page-Enter" content="blendTrans(Duration=0.0001)"><meta http-equiv="Page-Exit" content="blendTrans(Duration=0.0001)">), but these tags don't work anymore in IE9.
I created a website showing how to get rid of the flicker (http://mesdomaines.nu/eendracht/incl...web_templates2), but we should not have to use such an archaic method, which reminds us of the days of the Middle Ages, where framesets were used.
Arie Molendijk.