function msg(){
 document.getElementById("msg1").style.display="none"
 document.getElementById("msg2").style.display="none"
}
function msgnone(ms,cont){
 document.getElementById(ms).style.display='block'
 document.getElementById(cont).style.display='none'
}
function aa1(){
 document.getElementById("content1").style.display="block"
 document.getElementById("content2").style.display="none"
 document.getElementById("content3").style.display="none"
 document.getElementById("content4").style.display="none"
 document.getElementById("content5").style.display="none"
 document.getElementById("content6").style.display="none"
}
function aa2(){
 document.getElementById("content1").style.display="none"
 document.getElementById("content2").style.display="block"
 document.getElementById("content3").style.display="none"
 document.getElementById("content4").style.display="none"
 document.getElementById("content5").style.display="none"
 document.getElementById("content6").style.display="none"
}
function aa3(){
 document.getElementById("content1").style.display="none"
 document.getElementById("content2").style.display="none"
 document.getElementById("content3").style.display="block"
 document.getElementById("content4").style.display="none"
 document.getElementById("content5").style.display="none"
 document.getElementById("content6").style.display="none"
}
function aa4(){
 document.getElementById("content1").style.display="none"
 document.getElementById("content2").style.display="none"
 document.getElementById("content3").style.display="none"
 document.getElementById("content4").style.display="block"
 document.getElementById("content5").style.display="none"
 document.getElementById("content6").style.display="none"
}
function aa5(){
 document.getElementById("content1").style.display="none"
 document.getElementById("content2").style.display="none"
 document.getElementById("content3").style.display="none"
 document.getElementById("content4").style.display="none"
 document.getElementById("content5").style.display="block"
 document.getElementById("content6").style.display="none"
}
function aa6(){
 document.getElementById("content1").style.display="none"
 document.getElementById("content2").style.display="none"
 document.getElementById("content3").style.display="none"
 document.getElementById("content4").style.display="none"
 document.getElementById("content5").style.display="none"
 document.getElementById("content6").style.display="block"
}