function centWin(w,h) {
x=(screen.availWidth-w)/2; y=(screen.availHeight-h)/2;
aWindow.moveTo(x,y);
}
function openPop(url,w,h) {
aWindow=window.open(url,"thewindow","WIDTH="+w+",HEIGHT="+h);
centWin(w,h);
}
function openImg(pic,w,h) {
aWindow=window.open("","thewindow","menubar=0,scrollbars=0,WIDTH="+w+",HEIGHT="+(h+8));
aWindow.document.write(''+pic+'');
aWindow.document.write('');
aWindow.document.write('');
aWindow.document.close();
centWin(w,h);
}