function displayWindow(url, width, height){
        var Win = window.open(url,"displayWindow",'width=' + width + ',height=' + height + ',resizable=0,scrollbars=no,menubar=no' );
}

function expandingWindow(website) {
var heightspeed = 7; // vertical scrolling speed (higher = slower)
var widthspeed = 7;  // horizontal scrolling speed (higher = slower)
var leftdist = 0;    // distance to left edge of window
var topdist = 0;     // distance to top edge of window

var winwidth = window.screen.availWidth - leftdist;
var winheight = window.screen.availHeight - topdist;
var sizer = window.open("","","left=" + leftdist + ",top=" + topdist + ",width=1,height=1,status=yes,scrollbars=yes,resizable=yes,toolbar=yes,location=yes,directories=yes,menubar=yes,scrolling=no");
for (sizeheight = 1; sizeheight < winheight; sizeheight += heightspeed) {
sizer.resizeTo("1", sizeheight);
}
for (sizewidth = 1; sizewidth < winwidth; sizewidth += widthspeed) {
sizer.resizeTo(sizewidth, sizeheight);
}
sizer.location = website;
}

var sizer;

function expandingWindow2(website,width,height) {
var heightspeed = 7; // vertical scrolling speed (higher = slower)
var widthspeed = 10;  // horizontal scrolling speed (higher = slower)
var leftdist = 0;    // distance to left edge of window
var topdist = 0;     // distance to top edge of window

var winwidth = width - leftdist;
var winheight = height - topdist;


 if ( !sizer || sizer.closed )
  {
      sizer = window.open("","imagepreview","left=" + leftdist + ",top=" + topdist + ",width=1,height=1,status=no,scrollbars=no,resizable=no,toolbar=no,location=no,directories=no,menubar=no,scrolling=no");
      
      sizer.focus();
      for (sizeheight = 1; sizeheight < winheight; sizeheight += heightspeed) 
        {
         sizer.resizeTo("1", sizeheight);
        }
  
      for (sizewidth = 1; sizewidth < winwidth; sizewidth += widthspeed) 
        {
         sizer.resizeTo(sizewidth, sizeheight);
        }

      sizer.location = website;

  }
 else
  {
    sizer.resizeTo(winwidth, winheight);
    sizer.location = website;
    sizer.focus();

  }; 

}