function opnWin(wx, hx, url){

	var imWidth=wx;
	var imHeight=hx;

	if(screen.Width>imWidth){
  	fLeft=(screen.Width-imWidth)/2;
  }
  else{
    fLeft=0;
  }
	if(screen.Height>imHeight){
  	fRight=(screen.Height-imHeight)/2;
  }
  else{
    fRight=0;
  }
	ops='height=' + imHeight + ',width=' + imWidth + ',top=' + fRight + ',left=' + fLeft + ',scrollbars=0';
	URL=url;
	window.open(URL,'IMAGx',ops);
	window.open(URL,'IMAGx',ops);
}