function attrshow(id)
{
	var topId = 'top_'+ id;
	var topIconId = 'top_icon_' + id;
	var subId  = 'sub_' + id;
	
	var plus = document.getElementById(topIconId);
	var subMenu = document.getElementById(subId);
	if(subMenu.className == "disn"){
	    subMenu.className = "disb";
		plus.className = "minus";
    }else{
	    subMenu.className = "disn";
		plus.className = "plus";
	}
}

$(document).ready(function(){
	//search box in header
	var w='enter keywords';
	var e=':text[name="q"]';
	var q=$(e).focus(function(){
		if($(this).val()==w) $(this).val('');
	});
	if (''==q.val()) q.val(w);
	$('div#header form').submit(function(){
		var k=$.trim($(this).find(e).val());
		return !(k==''||k==w);
	});
	$("#sscontainer > table").css("margin","0 auto");
})