if (document.images) {
fon = new Image

  ser_d = new Image
 ser_dv = new Image



  ser_d.src = "images/d/ser_d.jpg"
 ser_dv.src = "images/d/ser_dv.jpg"

    fon.src =  "images/d/pumpd.jpg"

    fon.src =  "images/pusto.gif"
}
else {   ser_d = ""
        ser_dv = ""
        
           fon = ""
	   document.croc = ""
	   }
	  

if (document.images) {
fon = new Image

/*ser_mtr.src = "images/ser_mtr.jpg"*/
fon.src =  "images/d/pumpd.jpg"

}
else { /*ser_mtr = ""*/
	   fon = ""
	   document.croc = ""
	   }