Anti-flicker background in IE6 only

Great script (http://www.hedgerwow.com/360/bugs/dom-fix-ie6-background-image-flicker.html):

script

function(){

/*Use Object Detection to detect IE6*/
var m = document.uniqueID /*IE*/
&& document.compatMode /*>=IE6*/
&& !window.XMLHttpRequest /*<=IE6*/
&& document.execCommand ;

try{
if(!!m){
m("BackgroundImageCache", false, true) /* = IE6 only */ }
}catch(oh){}; })();

/script