// JavaScript Document
function clit(tabName,btnId,tabNumber){
for(i=0;i<tabNumber;i++){
document.getElementById(tabName+"_middle"+i).style.display = "none";
document.getElementById(tabName+"_left"+i).className = "main_left_h";
}
document.getElementById(tabName+"_middle"+btnId).style.display = "block";
document.getElementById(tabName+"_left"+btnId).className = "main_left_x";	
}