rem: this.MBwindow.style.left = Math.round((Element.getWidth(document.body) - Element.getWidth(this.MBwindow)) / 2 ) + "px"; 
add: Element.setStyle(this.MBwindow, {left: Math.round((Element.getWidth(document.body) - Element.getWidth(this.MBwindow)) / 2 ) + "px"}); 
context: 	_setPosition: function () {		this.MBwindow.style.left = Math.round((Element.getWidth(document.body) - Element.getWidth(this.MBwindow)) / 2 ) + "px";	},
meta: 2672	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/2672/727004c10ab02db8a0e10ea6cbc2813e73e20447/modalbox.js/clean/modalbox.js