function newWindow(mypage,myname,w,h,features){
if(screen.width){
var winl=(screen.width-w)/2;
var wint=(screen.height-h)/2;
}else{winl=0;wint=0;}
if (winl < 0) winl=0;
if (wint < 0) wint=0;
var settings='height='+h+',';
settings +='width='+w+',';
settings +='top='+wint+',';
settings +='left='+winl+',';
settings +=features;
win=window.open(mypage,myname,settings);
win.window.focus();
}