config. CenterWindow=false;config. CenterAlways=false;var ctrwnd=new tt_Extension();ctrwnd.OnLoadConfig=function(){if(tt_aV[CENTERWINDOW]){if(tt_aV[STICKY]){if(tt_aV[CENTERALWAYS]){if(tt_ie) tt_AddEvtFnc(window,"scroll",Ctrwnd_DoCenter);else tt_aElt[0].style.position="fixed";tt_AddEvtFnc(window,"resize",Ctrwnd_DoCenter);}return true;}tt_aV[CENTERWINDOW]=false;}return false;};ctrwnd.OnMoveBefore=Ctrwnd_DoCenter;ctrwnd.OnKill=function(){if(tt_aV[CENTERWINDOW] && tt_aV[CENTERALWAYS]){tt_RemEvtFnc(window,"resize",Ctrwnd_DoCenter);if(tt_ie) tt_RemEvtFnc(window,"scroll",Ctrwnd_DoCenter);else tt_aElt[0].style.position="absolute";}return false;};function Ctrwnd_DoCenter(){if(tt_aV[CENTERWINDOW]){var x,y,dx,dy;if(tt_ie || !tt_aV[CENTERALWAYS]){dx=tt_GetScrollX()-12;dy=tt_GetScrollY();}else{dx=0;dy=0;}x=(tt_GetClientW()-tt_w) / 2+dx+tt_aV[OFFSETX];y=(tt_GetClientH()-tt_h) / 2+dy+tt_aV[OFFSETY];tt_SetTipPos(x,y);return true;}return false;}