function enlargeimage(path, optWidth, optHeight){ //function to enlarge image. Change as desired.
var actualWidth=typeof optWidth!="undefined" ? optWidth : "600px"; //set 600px to default width
var actualHeight=typeof optHeight!="undefined" ? optHeight : "500px"; //set 500px to default height
var winattributes="width="+actualWidth+",height="+actualHeight+",resizable=yes";
var msgWindow = window.open("","Image", winattributes);
var head = 'Image';
var body1 = '';
var image = '
';
var body2 = '';
msgWindow.document.write(head + body1 + image + body2);
msgWindow.document.close();
}