function bstf(stname){
if (document.getElementById("data") != null){
var bst=document.getElementById("data");
bst=bst.innerHTML;
bst=bst.replace(/<b>/g,"");
bst=bst.replace(/<\/b>/g,"");
bst=bst.replace(/<B>/g,"");
bst=bst.replace(/<\/B>/g,"");
var regbst = new RegExp(stname, "g");
bst=bst.replace(regbst,"<b>"+stname+"</b>");
document.getElementById("data").innerHTML=bst;
}
}