Yes, you can use this material effect:
Code:

---

 
material mat_near
{	
   effect="	
   technique test	
   {		
      pass p0		
      {			
         ZWRITEENABLE =TRUE; 			
         ZFUNC=ALWAYS;            		
      }	
   }	
   ";
} 

---

once I asked the the same question in this tread