function testId(x) {
                if(x =='a'){
                    document.getElementById('text1').style.display = "block";
                    document.getElementById('text2').style.display = "none";
                    document.getElementById('text3').style.display = "none";
                    document.getElementById('text4').style.display = "none";
                    document.getElementById('text5').style.display = "none";
                    document.getElementById('text6').style.display = "none";}

                else if(x =='b'){
                    document.getElementById('text1').style.display = "none";
                    document.getElementById('text2').style.display = "block";
                    document.getElementById('text3').style.display = "none";
                    document.getElementById('text4').style.display = "none";
                    document.getElementById('text5').style.display = "none";
                    document.getElementById('text6').style.display = "none";
                }

                else if(x =='c'){
                    document.getElementById('text1').style.display = "none";
                    document.getElementById('text2').style.display = "none";
                    document.getElementById('text3').style.display = "block";
                    document.getElementById('text4').style.display = "none";
                    document.getElementById('text5').style.display = "none";
                    document.getElementById('text6').style.display = "none";
                }

                else if(x =='d'){
                    document.getElementById('text1').style.display = "none";
                    document.getElementById('text2').style.display = "none";
                    document.getElementById('text3').style.display = "none";
                    document.getElementById('text4').style.display = "block";
                    document.getElementById('text5').style.display = "none";
                    document.getElementById('text6').style.display = "none";
                }
                else if(x =='e'){
                    document.getElementById('text1').style.display = "none";
                    document.getElementById('text2').style.display = "none";
                    document.getElementById('text3').style.display = "none";
                    document.getElementById('text4').style.display = "none";
                    document.getElementById('text5').style.display = "block";
                    document.getElementById('text6').style.display = "none";
                }

                else if(x =='f'){
                    document.getElementById('text1').style.display = "none";
                    document.getElementById('text2').style.display = "none";
                    document.getElementById('text3').style.display = "none";
                    document.getElementById('text4').style.display = "none";
                    document.getElementById('text5').style.display = "none";
                    document.getElementById('text6').style.display = "block";
                }
            }