//Brings the given message board topic to the top.
//argument0 - Topic index

if(global.mb_total[1] > argument0)
{

f_topic[0] = global.mb_topic[argument0,0];
f_topic[1] = global.mb_topic[argument0,1];
f_topic[2] = global.mb_topic[argument0,2];
for(mb = 0; mb < global.mb_topic[argument0,1]; mb += 1)
{
f_reply[mb] = global.mb_reply[argument0,mb]
}

mb_tcollapse(argument0);

global.mb_topic[global.mb_total[1],0] = f_topic[0];
global.mb_topic[global.mb_total[1],1] = f_topic[1];
global.mb_topic[global.mb_total[1],2] = f_topic[2];
for(mb = 0; mb < f_topic[1]; mb += 1)
{
global.mb_reply[global.mb_total[1],mb] = f_reply[mb];
}


global.mb_total[1] += 1;

}