public void Replace(){
	                  int i = 0;
	                  for(i = 0;i<this.IRcount;i++){
	                        Operation a = IRs.get(i);
	                        List<String> keys = new ArrayList<String>(this.Parameters.keySet());
	                        for(String key: keys){
	                              Element b = Parameters.get(key);
	                              if(a.op1.equals(key)){
	                                    a.op1=b.E_name;
	                              }
	                              if(a.op2.equals(key)){
	                                    a.op2=b.E_name;
	                              }
	                              if(a.op3.equals(key)){
	                                    a.op3=b.E_name;
	                              }
	                        }     
	                  }
	            }