function change_option(number,index){for(var i=1;i<=number;i++){document.getElementById('content'+i).style.display='none';document.getElementById('paramtab'+i).style.backgroundColor="#a7a7a7";document.getElementById('worktab'+i).style.backgroundColor="#a7a7a7";document.getElementById('advance'+i).style.backgroundColor="#a7a7a7";document.getElementById('duibi'+i).style.backgroundColor="#a7a7a7";}
document.getElementById('content'+index).style.display='block';if(index==1)
document.getElementById('advance1').style.backgroundColor="#d8d9db";if(index==2)
document.getElementById('paramtab2').style.backgroundColor="#d8d9db";if(index==3)
document.getElementById('worktab3').style.backgroundColor="#d8d9db";if(index==4)
document.getElementById('duibi4').style.backgroundColor="#d8d9db";}
function change_image(imageUrl,num){document.getElementById("threeImg").src=imageUrl;document.getElementById("imageTab1").style.background="#9f9f9f";document.getElementById("imageTab2").style.background="#9f9f9f";document.getElementById("imageTab3").style.background="#9f9f9f";document.getElementById("imageTab"+num).style.background="#ed3334";}