function popup(name,wid,hei) {

var w = 600, h = 400;

if (document.all || document.layers || document.getElementById) {
   w = screen.availWidth;
   h = screen.availHeight;
}

var leftPos = ((w-wid)/2), topPos = ((h-hei)/2);

window.open(name,'','toolbar=no,status=no,scrollbars=yes,location=no,menubar=no,directories=no,width='+wid+',height='+hei+',top='+topPos+',left='+leftPos);
}



function proppopup(name) {

var w = 800, h = 600;

if (document.all || document.layers || document.getElementById) {
   w = screen.availWidth;
   h = (screen.availHeight-30);
}

var leftPos = (w-510)/2;

window.open((name+'.htm'),(name+'window'),'toolbar=no,status=no,scrollbars=yes,location=no,menubar=no,directories=no,width=510,height='+h+',top=0,left='+leftPos)
}



function proppopup2(name) {

var w = 800, h = 600;

if (document.all || document.layers || document.getElementById) {
   w = screen.availWidth;
   h = (screen.availHeight-60);
}

var leftPos = (w-630)/2;

window.open((name+'.htm'),(name+'window'),'toolbar=no,status=no,scrollbars=yes,location=no,menubar=no,directories=no,width=630,height='+h+',top=0,left='+leftPos)
}



function proppopup3(name,w2,h2,scroll) {

var w = 800, h = 600;

if (document.all || document.layers || document.getElementById) {
   w = screen.availWidth;
   h = screen.availHeight;
}

var popW = w2, popH = h2;

var leftPos = (w-popW)/2, topPos = (h-popH)/2;

window.open(name,'','toolbar=no,status=no,scrollbars='+scroll+',location=no,menubar=no,directories=no,resizable=no,width='+popW+',height='+popH+',top='+topPos+',left='+leftPos);

}