var win = null; 

function NW(mypage,myname,w,h){ 
LeftPosition = (screen.width) ? (screen.width-w)/2 : 0; 
TopPosition = (screen.height) ? (screen.height-h)/2 : 0; 
settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+'' 
win = window.open(mypage,myname,settings) 
if(win.window.focus){win.window.focus();}
}

function NWSR(mypage,myname,w,h,scroll,resiz){ 
LeftPosition = (screen.width) ? (screen.width-w)/2 : 0; 
TopPosition = (screen.height) ? (screen.height-h)/2 : 0; 
resiz = 'yes';
settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable='+resiz
win = window.open(mypage,myname,settings) 
if(win.window.focus){win.window.focus();}
}



function NWR(mypage,myname,w,h,resiz){ 
LeftPosition = (screen.width) ? (screen.width-w)/2 : 0; 
TopPosition = (screen.height) ? (screen.height-h)/2 : 0; 
resiz = 'yes';
settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',resizable='+resiz
win = window.open(mypage,myname,settings) 
if(win.window.focus){win.window.focus();}
}