function HelpArray(len) { 
   this.length=len; 
} 

HelpText = new HelpArray(5); 
HelpText[0] ="<img border=\"0\" width=\"550\" height=\"150\" src=\"images/banner_en_1.jpg\" alt=\"Paternity Testing\" onload=\"\">"; 
HelpText[1] ="<img border=\"0\" width=\"550\" height=\"150\" src=\"images/banner_en_2.jpg\" alt=\"Diagnosis of Genetics Diseases\" onload=\"\">"; 
HelpText[2] ="<img border=\"0\" width=\"550\" height=\"150\" src=\"images/banner_en_3.jpg\" alt=\"Co-Operations\" onload=\"\">"; 
HelpText[3] ="<img border=\"0\" width=\"550\" height=\"150\" src=\"images/banner_en_4.jpg\" alt=\"Professor Le Dinh Luong\" onload=\"\">"; 

var i = 0; 

function playHelp() { 
   if (i==3) { 
      i = 0; 
   } else { 
      i++; 
   } 
       
   headerimg.filters[0].apply(); 
   headerimg.innerHTML = HelpText[i]; 
   headerimg.filters[0].play(); 
   mytimeout = setTimeout('playHelp()',10000); 
}