//字符串带参格式化
string.format = function (str) {
    for (var i = 1; i < arguments.length; i++) {
		var reg = new regexp("\\{" + (i-1) + "\\}", "g");
		str = str.replace(reg, arguments[i] ? arguments[i] : "");
    }
    return str;
}
string.prototype.format = function () {
	return string.format.apply(null, [this].concat(array.prototype.slice.apply(arguments)));
}
//字符串重复
string.replicate = function (str, n) {
	var ret = "";
	for (var i = 0; i < n; i++) {
		ret += str;
	}
	return ret;
}
//是否包含单词
string.prototype.has = function (word) {
	var words = this.split(" ");
	for (var i = 0; i < words.length; i++) {
		if (words[i] == word) return true;
	}
	return false;
}
//添加单词
string.prototype.add = function (word) {
	if (this.has(word)) return this;
	return (this.length > 0 ? this + " " : "") + word;
}
//移除单词
string.prototype.remove = function (word) {
	if (!this.has(word)) return this;
	var words = this.split(" ");
	for (var i = words.length - 1; i >= 0; i--) {
		if (words[i] == word) {
			words.splice(i, 1);
		}
	}
	return words.join(" ");
}

//日期格式化
date.prototype.format = function (args) {
    var res = args;
    var o = {
        "m+": this.getmonth() + 1, //month
        "d+": this.getdate(),    //day
        "h+": this.gethours(),   //hour
        "m+": this.getminutes(), //minute
        "s+": this.getseconds(), //second
        "q+": math.floor((this.getmonth() + 3) / 3),  //quarter
        "s": this.getmilliseconds() //millisecond
    }
    if (/(y+)/.test(res))
        res = res.replace(regexp.$1, (this.getfullyear() + "").substr(4 - regexp.$1.length));
    for (var k in o)
        if (new regexp("(" + k + ")").test(res))
            res = res.replace(regexp.$1, regexp.$1.length == 1 ? o[k] : ("00" + o[k]).substr(("" + o[k]).length));
    return res;
};

//ie不支持trim()
if(!string.prototype.trim) {
    var trim_reg = /(^\s*)|(\s*$)/g;
    string.prototype.trim = function () {
        return this.replace(trim_reg, '');
    }
};

//让ie支持这种带参调用
newdate = function (str) {
    strs = str.split('-');
    if (strs.length < 3) return null;
    var date = new date();
    date.setutcfullyear(strs[0], strs[1] - 1, strs[2]);
    date.setutchours(0, 0, 0, 0);
    if (isnan(date)) return null;
    return date;
};

//object
object.prototype.extend = function (attrs) {
	for (var p in attrs) {
		this[p] = attrs[p];
	}
	return this;
};

//按属性查找array中的项
array.prototype.find = function (obj) {
	for (var i = 0; i < this.length; i++) {
		var o = this[i];
		for (var p in obj) {
			if (p in o && o[p] == obj[p]) return o;
		}
	}
}

//url工具
var url = {
	//分割
	split: function (url) {
		url = decodeuri(url);
		var idx = url.lastindexof("/");
		var path = url.substring(0, idx + 1),
		name = url.substring(idx + 1);
		return { path: path, name: name }; //path最后带"/"
	},
	//将后一个绝对路径转为相对于前一个的路径
	relative: function(path1, path2) {
		if (path1.charat(0) != "/" || path2.charat(0) != "/") return null;
		var parts1 = path1.split("/"),
			parts2 = path2.split("/");
		for (var i = 1; i < parts1.length && i < parts2.length; i++)
			if (parts1[i] != parts2[i]) break;
		i--;
		return string.replicate("../", parts1.length - 1 - i - 1) + parts2.splice(i + 1, parts2.length - 1 - i).join("/");
	}
};

//脚本
var scripts = {

	getpathbyname: function (filename) {
		var path;
		var scripts = document.scripts;
		for (var i = 0; i < scripts.length; i++) {
			var urlstr = scripts[i].src; //总是为绝对路径
			if (urlstr) {
				var url = url.split(urlstr);
				if (url.name == filename) {
					path = url.path;
					break;
				} else path = "";
			}
		}
		return path;
	},
	quote: function (path) {
	}
	
};

//数据工具
var data = {
	
//格式化
	format: function (val) {
		if (val == null) return "";
		switch (typeof (val)) {
			case "string": return val;
			case "object":
				switch (val.constructor) {
					case date: return val.format("yyyy-mm-dd hh:mm:ss");
					default: return val;
				}
			default: return val;
		}
	}

};

//查询字符串
var qs = {
	
	getval: function (key) {
		var reg = new regexp("[\?\&]" + key + "=([^\&]*)");
		var res = location.search.match(reg);
		return res == null ? "" : res[0].split("=")[1];
	},
	getkv: function (key) {
		var reg = new regexp("[\?\&]" + key + "=([^\&]*)");
		var res = location.search.match(reg);
		return res == null ? null : res[0];
	},
	setval: function (key, val) {
		var qs = location.search;
		var okv = getquerykeyvalue(key);
		var reg = new regexp("[\?\&]" + key + "=([^\&]+)");
		var kv = key + "=" + val;
		if (okv == null) return qs + (getquerystring() != null ? "&" : "?") + kv;
		else return qs.replace(okv, okv[0] + kv);
	}

};

//html工具
var html = {
	
	encode: function (str) {
		var res;
		var div = document.createelement("div");
		var text = document.createtextnode(str);
		div.appendchild(text);
		res = div.innerhtml;
		div.parentnode.removechild(div);
		return res;
	},
	decode: function (str) {
		var res;
		var div = document.createelement("div");
		div.innerhtml = str;
		res = div.innerhtml;
		div.parentnode.removechild(div);
		return res;
	}

};

//dom操作
var dom = {

	//窗口大小
	getwinsize: function () {
		var width = document.documentelement.clientwidth,
		height = document.documentelement.clientheight;
		return { width: width, height: height };
	},
	//客户区坐标转文档坐标
	convpos: function (pos) {
		var scrollx = document.documentelement.scrollleft || document.body.scrollleft,
		scrolly = document.documentelement.scrolltop || document.body.scrolltop;
		return { x: pos.x + scrollx, y: pos.y + scrolly };
	},
	//获取元素的客户区坐标
	getpos: function (ele) {
		if (typeof (ele) == "string") ele = dom.get(ele);
		var rect = ele.getboundingclientrect();
		return { x: rect.left, y: rect.top };
	},
	//获取
	get: function (id) {
		if (typeof (id) == "string")
			return document.getelementbyid(id);
		else return id;
	},
	getbytag: function(ele, tag) {
		if (typeof(ele) == "string")
			ele = dom.get(ele);
		return  ele.getelementsbytagname(tag);
	},
	getbyclass: function(ele, classname) {
		if (typeof(ele) == "string")
			ele = dom.get(ele);
		var nodes = ele.childnodes;
		var eles = [];
		for (var i = 0; i < eles.length; i++) {
			var node = nodes[i];
			if (node.classname.has(classname))
				eles.push(node);
		}
		return eles;
	},
	//创建
	createtag: function (tag) {
		return document.createelement(tag);
	},
	createtext: function (text) {
		return document.createtextnode(text);
	},
	create: function (str) {
		var reg = /<(?:(?:\/?[a-za-z]\w*\b(?:[=\s](['"]?)[\s\s]*?\1)*)|(?:!--[\s\s]*?--))\/?>/g;
		if (!reg.test(str)) return null;
		var div = document.createelement("div");
		div.innerhtml = str;
		var ele = div.childnodes[0];
		return ele;
	},
	//移除
	remove: function (ele) {
		ele = dom.get(ele);
		ele.parentnode.removechild(ele);
	},
	empty: function (ele) {
		ele = dom.get(ele);
		while (ele.firstchild)
			ele.removechild(ele.firstchild);
	},
	//设置属性
	attr: function (ele, attrs) {
		for (var k in attrs) {
			var value = attrs[k];
			switch (k) {
				case 'class':
					//ie下要这样赋值，setattribute不起作用
					ele.classname = value;
					break;
				case 'style':
					ele.style.csstext = ele.style.csstext + ";" + value;
					break;
				case 'innerhtml':
					ele[k] = value;
					break;
				case 'value':
					ele.value = value;
					break;
				default:
					ele.setattribute(k, value);
					break;
			}
		}
	},
	//判断类
	hasclass: function(ele, classname) {
		return ele.classname.has(classname);
	},
	//添加类
	addclass: function(ele, classname) {
		ele.classname = ele.classname.add(classname);
	},
	//移除类
	removeclass: function(ele, classname) {
		ele.classname = ele.classname.remove(classname);
	},
	//在节点后插入
	insertafter: function (target, node) {
		if(!target.nextsibling)
			target.parentnode.appendchild(node);
		else target.parentnode.insertbefore(node, target.nextsibling);
	},
	//创建id
	createid: function(pre) {
		var i = 1;
		while (dom.get(pre + i) && i < 10) i++;
		return pre + i;
	}
	
};

//html控件select相关操作
(function() {

window.select = function (ele) {
	if (typeof(id) == "string")
		this.ele = dom.get(id);
	else this.ele = ele;
};
var fn = window.select.prototype;
fn.add = function (item) {
	op = dom.create("option");
	op.innerhtml = item.text;
	dom.attr(op, { value: item.value });
	this.ele.appendchild(op);
};
fn.addrange = function (items) {
	for (var i = 0; i < items.length; i++)
		this.add(items[i]);
};
fn.set = function (items) {
	dom.empty(this.ele);
	this.add(items);
};

})();

//httprequest
var httprequest = {

create: function () {
    var request;
    try {
        // firefox, opera 8.0+, safari
        request = new xmlhttprequest();
    }
    catch (e) {
        try {
            request = new activexobject("msxml2.xmlhttp");
        }
        catch (e) {
            try {
                request = new activexobject("microsoft.xmlhttp");
            }
            catch (e) {
                alert("您的浏览器不支持ajax！");
            }
        }
    }
    return request;
}

};