function getobj(id){
	return document.getElementById(id);	
}

function selecttab(obj, act, def, special, areaname){
	var node = childs(obj.parentNode.parentNode.childNodes);
	for(var i=0;i<node.length;i++){
		if(node[i].className != special){
			node[i].className = def;	
			if(getobj(areaname + "_" + i))
				getobj(areaname + "_" + i).style.display = "none";
		}
	}
	obj.parentNode.className = act;
	for(var i=0;i<node.length;i++){
		if(node[i].className != special){
			if(node[i].className == act){
				if(getobj(areaname + "_" + i))
					getobj(areaname + "_" + i).style.display = "";
			}
		}
	}
}
//兼容FF下的childNodes
function childs(nodes)
{
    if(!nodes.length) 
        return [];
    var ret=[];
    for(var i=0;i<nodes.length;i++)
    {
        if(nodes[i].nodeType!=1) 
            continue;
        ret.push(nodes[i]);
    }
    return ret;
}

//?
function ChangeVerifyImgNew(url){
	document.getElementById("verifyimg").src = url + 'member/verifyimg.aspx?d=' + escape(Date());
}

//控制只能输入数字
function isNumber(e) {   
	if ($.browser.msie) {   
		if(event.keyCode==46 || event.keyCode==8 || event.keyCode==37 || event.keyCode==39 
			|| (event.keyCode>=48&&event.keyCode<=57)|| (event.keyCode>=96&&event.keyCode<=105)){
			return true; 
		} else {   
			return false;   
		}   
	} else {   
		if(e.which==46 || e.which==8 || e.which==37 || e.which==39 
			|| (e.which>=48&&e.which<=57)|| (e.which>=96&&e.which<=105)){
			return true;   
		} else {   
			return false;   
		}   
	}   
}