function tabit(btn)
{
 var idname = new String(btn.id);
 var s = idname.indexOf("_");
 var e = idname.lastIndexOf("_")+1;
 var tabName = idname.substr(0, s);
 var id = parseInt(idname.substr(e, 1));
 var tabNumber = btn.parentNode.childNodes.length;
 for(i=0;i<tabNumber;i++)
 {
 	document.getElementById(tabName+"_div_"+i).style.display = "none";
 	document.getElementById(tabName+"_btn_"+i).style.backgroundColor = "#fff";
 	document.getElementById(tabName+"_btn_"+i).style.borderBottomColor = "#f2f2f2";
 	document.getElementById(tabName+"_btn_"+i).style.cursor = "pointer";
 }
 	document.getElementById(tabName+"_div_"+id).style.display = "block";
 	btn.style.backgroundColor = "#fff";
 	btn.style.borderBottomColor = "#fff";
 	btn.style.cursor = "default";
}