function list_top(){}
function list_mid(){
    document.writeln("<p align='center'>");
    
    document.writeln("</p>");
}
function list_bot(){
    document.writeln("<p align='center'>");
    
    document.writeln("</p>");
}

function read1(){}

function read2(){
    document.writeln("<div style='margin:10px auto;width: 930px;height: 250px;'>");
    document.writeln("<span style='float:left;margin:0 5px'>");
    
    document.writeln("</span>");
    document.writeln("<span style='float:left;margin:0 5px'>");
    
    document.writeln("</span>");
    document.writeln("<span style='float:left;margin:0 5px'>");
    
    document.writeln("</span>");
    document.writeln("</div>");
}

function read3(){
    
// 
}

function read4(){
    document.writeln("<p align='center'>");
    
    document.writeln("</p>");
}

function read5(){}