function preloader() 
{
     var i = 0;
     var sPath = "http://172.16.35.230/komenda/CustomUpload/374O357O340O370O356O369O350O362O366O364O356O365O355O352O/WebShop/";
	 imageObj = new Image();

     // set image list
     images = new Array();
     images[0]="Logo_button_Casco_over.jpg"
     images[1]="Logo_button_Cresta_over.jpg"
     images[2]="Logo_button_Abus_over.jpg"
     images[3]="Logo_button_B_over.jpg"

     // start preloading
     for(i=0; i<=3; i++) 
     {
          imageObj.src=images[i];
     }

}