public boolean inputBook(String title, String autFname, String autLname, int isbn){
		
		boolean bkTypeJv=checkBookCntnt(title, "java");		//check the type of book 
		boolean bkTypeph=checkBookCntnt(title, "php");
		if(bkTypeJv!=false||bkTypeph!=false){				// books contain java or php
				boolean cntainIsbn=bn.checkISBN(bn.root, isbn);		//check isbn is already taken

					if(!cntainIsbn){
								Node newNode=new Node(title, autFname, autLname, isbn);		//create a new object
								bn.insert(newNode);											// add the object to binary tree
						}else
							System.out.println("book ISBN is Already taken");
						
						
						return true;
		}else
			System.out.println("!!!!!!!!!!!!!book dont relate to php or java");
		return false;
		
	}