function scrollDoor(menus,divs,current2,notCurrent,show,hide2){
	  for(var i = 0 ; i < menus.length ; i++)
	  { 
		   document.getElementById(menus[i]).value = i; 
		   document.getElementById(menus[i]).href = "javascript:void(0)";    
		   document.getElementById(menus[i]).onmouseover = function(){			 
			for(var j = 0 ; j < menus.length ; j++)
			{      
				 document.getElementById(menus[j]).className = notCurrent;
				 document.getElementById(divs[j]).className = hide2;
			}
			document.getElementById(menus[this.value]).className = current2; 
			document.getElementById(divs[this.value]).className = show;  
		   }
	  }
 }
window.onload = function(){
  scrollDoor(["a1","a2","a3","a4"],["b1","b2","b3","b4"],"current2","","content2","hide2");
 
}