// This script is for use on the web-sites where the maximum picture
// size is dictated by download time to about 60-100 KB. There is no point
// in using the whole of the screen for high resolution monitors since this
// will produce visible pixellation.
// The full display process only works for N4 and IE4 and above, hence the
// work-around code
var firstTime = 1;
function displayPicture(picUrl, picH, picW, bgColour)
{
// browser sniffer
var browserVersion = parseInt(navigator.appVersion);
var BVMAX = 4;
if (browserVersion < BVMAX)
{
var aw = 800;
var ah = 600;
if (firstTime)
{
alert("Your browser cannot implement the picture" +
" display properly. I recommend that you" +
" update it sometime soon.");
firstTime = 0;
}
}
else
{
var aw = screen.availWidth;
var ah = screen.availHeight;
}
var aRMax = aw/ah;
var winW, winH;
var aR = picW/picH;
if(bgColour==null){bgColour="#000000";}
if (aR >= aRMax)
{ winW = aw;
winH = aw/aRMax;
}
else
{ winH = ah;
winW = ah*aRMax;
}
if (browserVersion < BVMAX )
var newWin = window.open("", "newWindow",
"width=" + winW + ",height=" + winH + ",resizable,scrollbars" );
else
var newWin = window.open("", "newWindow",
"width=" + winW + ",height=" + winH +
",screenX=0,screenY=0,left=0,top=0" );
var dispW = winW * 0.95;
var dispH = winH * 0.95;
var vSp = 0;
if (aw>800){
var mag = aw/1000;
dispW=picW*mag; dispH=picH*mag;
}
newWin.document.open();
newWin.document.write("Picture Display Window");
newWin.document.write("");
if (aw>800)
{ for ( var i = 0; i<4*mag; i++ )
newWin.document.write("
");
}
newWin.document.write("![](\"")
");
newWin.document.write("");
newWin.document.close();
}