var i = 1; //incrementer for extra windows
var numOfWins = 5; //max number of windows
//detect browser type
var isIE = (navigator.appName == "Microsoft Internet Explorer"
&& parseInt(navigator.appVersion) >= 4) ? true : false;
var isNS = (navigator.appName == "Netscape" &&
parseInt(navigator.appVersion) >= 4) ? true : false;
function picWin(url, alt)
{
//set parameters for the image's window and open the window
var winParms = 'copyhistory=no,directories=no,location=no,' +
'menubar=no,resizable=no,scrollbars=no,status=no,toolbar=no';
var pop = window.open('', 'pop' + i, winParms);
//increment i if i is not equal to the max number of windows
i == numOfWins ? i = 1 : i++;
//create html to write to the new window
var popString = '';
if (isNS && parseInt(navigator.appVersion) >= 5)
{
popString += '\r';
popString += '\r';
popString += '\r';
popString += '\r';
}
popString += '\r';
popString += '
\r';
popString += '';
//open the document in the window and write the image to it
pop.document.open();
pop.document.write(popString);
pop.document.close();
pop.document.title = alt;
if (isIE)
{
//get the height and width of the image
imgHeight = pop.document.images[0].offsetHeight;
imgWidth = pop.document.images[0].offsetWidth;
//resize document body to dimensions of the image
pop.document.body.height = Math.ceil(imgHeight);
pop.document.body.width = Math.ceil(imgWidth);
//resize window to dimensions of the image
pop.resizeTo(0, 0);
pop.resizeBy(Math.ceil(imgWidth)-91, Math.ceil(imgHeight)-71);
}
else if (isNS)
{
//get the height and width of the image
imgHeight = pop.document.images[0].height;
imgWidth = pop.document.images[0].width;
//resize window to dimensions of the image
pop.innerHeight = imgHeight;
pop.innerWidth = imgWidth;
}
else
alert("Please use a browser that is compatible with this script.");
//center the image window on the screen and give it focus
var globalLeft = (screen.width - imgWidth) / 2;
var globalTop = (screen.height - imgHeight) / 2;
pop.moveTo(globalLeft, globalTop);
pop.focus();
}