function dropdown(selection){
	 var value, value1;
	   value= selection.options[selection.selectedIndex].value;
	  
	   if(value){
	      if(selection.form.target){
	      
	       value1 = parent[selection.form.target];
	       }
	      else {
	       
	        value1 = window;	
	        }	     
	      if(!value1) 
	        return true;
	      value1.location = value;	   
	   }
	   return false;
	 }