function openAWindow( pageToLoad, winName, width, height, center, scrollit)  {
	xposition=0; yposition=0;
	if ((parseInt(navigator.appVersion) >= 4 ) && (center)) {
		xposition = (screen.width - width) / 2;
		yposition = (screen.height - height) / 2;
	}
	args = "width=" + width + "," 
	+ "height=" + height + "," 
	+ "location=0," 
	+ "menubar=0,"
	+ "resizable=0,"
	+ "scrollbars=" + scrollit + ","
	+ "status=0," 
	+ "titlebar=1,"
	+ "toolbar=0,"
	+ "hotkeys=0,"
	+ "screenx=" + xposition + ","  //NN Only
	+ "screeny=" + yposition + ","  //NN Only
	+ "left=" + xposition + ","     //IE Only
	+ "top=" + yposition;           //IE Only

	//window.open( pageToLoad,winName,args );  //alternative sans le focus
	var mywin=window.open( pageToLoad,winName,args );
	mywin.focus();
}