if (document.images)
    {
      preload_image_object = new Image();
      // set image url
      image_url = new Array();
      image_url[0] = "http://www.flven.com/images/logo.png";
      image_url[1] = "http://www.flven.com/images/pozadi.png";
	  image_url[2] = "http://www.flven.com/images/pozadi_two.png";
	  image_url[3] = "http://www.flven.com/images/prohlednout_sluzby.png";
	  image_url[4] = "http://www.flven.com/images/prohlednout_sluzby_a.png";
	  image_url[5] = "http://www.flven.com/images/prohlednout_reference_a.png";
	  image_url[6] = "http://www.flven.com/images/prohlednout_reference.png";
	  image_url[7] = "http://www.flven.com/loga/fola.png";
	  image_url[8] = "http://www.flven.com/loga/fola_sel.png";
	  image_url[9] = "http://www.flven.com/loga/jz.png";
	  image_url[10] = "http://www.flven.com/loga/jz_sel.png";	  
	  image_url[11] = "http://www.flven.com/loga/sentavi.png";
	  image_url[12] = "http://www.flven.com/loga/sentavi_sel.png";
	  image_url[13] = "http://www.flven.com/loga/try.png";
	  image_url[14] = "http://www.flven.com/loga/try_sel.png";
	  image_url[15] = "http://www.flven.com/loga/wtr.png";
	  image_url[16] = "http://www.flven.com/loga/wtr_sel.png";
	  image_url[17] = "http://www.flven.com/loga/walktheroom.jpg";
	  image_url[18] = "http://www.flven.com/loga/fola.gif";
	  image_url[19] = "http://www.flven.com/loga/logo_jobzippers.jpg";
	  image_url[20] = "http://www.flven.com/loga/sentavi.jpg";
	  image_url[21] = "http://www.flven.com/loga/try_logo.png";


       var i = 0;
       for(i=0; i<=3; i++) 
         preload_image_object.src = image_url[i];
    }