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).className = "";
		};
		document.getElementById(tabName+"_div_"+id).style.display = "block";
		btn.className = "curr";
};

function etabit(btn8){
        var idname = new String(btn8.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 = btn8.parentNode.childNodes.length;
        for(i=0;i<tabNumber;i++){
                        document.getElementById(tabName+"_div_"+i).style.display = "none";
                        document.getElementById(tabName+"_btn8_"+i).className = "";
                };
                document.getElementById(tabName+"_div_"+id).style.display = "block";
                btn8.className = "curr";
};