function expandImage(itemName,imgLoc,imgH,imgW)
  {
imgH = imgH * 1; imgW = imgW * 1;
var X = window.screen.availHeight;
var Y = window.screen.availWidth;
X = X - 100;  Y = Y - 50;
if(X > (imgH + 90))	
{ X = (imgH + 90); }
if(Y > (imgW + 40))	
{ Y = (imgW + 40); }
if(Y<210){	Y = 210;	}
  var popWin = window.open('','','toolbar=0, location=0,status=0,menubar=0,resizable=0,scrollbars=1,width='+Y+',height=' + X);
  popWin.document.open();
  popWin.document.write('<ht'+'ml><he'+'ad><ti'+'tle>' + itemName + '</tit'+'le></he'+'ad><bo'+'dy>');
  popWin.document.write('<img alt="loading expanded image... please wait..." name=mainImage src='+imgLoc+' border=0>');
  popWin.document.write('<br><br><font face=arial,helvetica size=2><b><center><a href="javascript:window.close()"><b><font color=222222>Close Window</a>');
  popWin.document.write('</body></html>');
  popWin.document.close();
  popWin.moveTo(50,50);
  }