function PopUp(i, W, H, S, M){
		lpos = (screen.availWidth / 2) - (W / 2);
		tpos = (screen.availHeight / 2) - (H / 2);
		window.open(i, '', 'scrollbars='+S+', statusbar=no, menubar='+M+', left='+lpos+',top='+tpos+', width='+W+', height='+H);
	}