function jsdecide(imagesrc,winwidth,winheight){
var winwidth2=winwidth
var winheight2=winheight
var Tbreed
var Thoog
var tekst
var bereken
var breed
var look='width='+winwidth+',height='+winheight+','
popwin=window.open("","",look)
popwin.document.open()
breed=winwidth+10
winwidth=winwidth+ 10
winheight=winheight+28
bereken=(screen.availheight / 2)-(winheight / 2)
Tbreed=((winwidth - screen.availwidth)) / 2
Thoog=((winheight - screen.availheight) - 40) / 2
{
if (winheight2-screen.height >= 1)
bereken = bereken;
else
bereken=bereken +5;
}
{
if (Tbreed <= 0)
Tbreed = 0;
else
Tbreed=Tbreed;
}
{
if ((winheight2-screen.height <= 0) && (winwidth2-screen.Width <= 0))
tekst=' ';
else
tekst=' De foto ( '+winwidth2+' x '+winheight2+' ) past niet geheel in uw scherm ( '+screen.width+' x '+screen.height+' ) . Vergroot uw schermresolutie om dit te verhelpen.';
}
popwin.self.resizeTo(breed,winheight);
popwin.moveTo((screen.availWidth / 2) -(breed / 2),bereken);
popwin.document.write('Foto vergroting
'+tekst+'
')
popwin.document.close()
}