// ====================================
// Javascript基础函数

var ie = ("\v"=="v") ? true : false;
var $ = function (id) { return "string" == typeof id ? document.getElementById(id) : id; }

String.prototype.Trim=function() { return this.replace(/(^\s*)|(\s*$)/g,""); }
String.prototype.Ltrim = function() { return this.replace(/(^\s*)/g, ""); }
String.prototype.Rtrim = function() { return this.replace(/(\s*$)/g, ""); }
String.prototype.replaceAll = function(s1,s2) { return this.replace(new RegExp(s1,"gm"),s2);  }
String.prototype.PureDigital = function() { var rsl = this; return rsl.replace(/[^\d]/gi, "");  }
String.prototype.Contains = function(v) { return (this.indexOf(v)>=0) ? true : false; }
String.prototype.Untail = function() { var rsl = this; if(rsl=="") return "";	if(rsl.substr(rsl.length-1,1)==",") return rsl.substr(0,rsl.length-1); return rsl; }
String.prototype.NoSplit = function() { var rsl = this; if(rsl.substr(rsl.length-1,1)<"0" || rsl.substr(rsl.length-1,1)>"9") {	return rsl.substr(0,rsl.length-1); } return rsl; }

// ====================================
// Ctrl: div, span, input, ...
function getElements(ctrl, attr, name) 
{ 
	var returns = document.getElementsByName(name); 
	if(returns.length > 0) return returns; 
	returns = new Array(); 
	var e = document.getElementsByTagName(ctrl); 
	for(i = 0; i < e.length; i++) { 
		if(e[i].getAttribute(attr) == name) { 
			returns[returns.length] = e[i]; 
		} 
	} 
	return returns; 
}

function getElementsByName(ctrl, name) 
{ 
	return getElements(ctrl, "name", name); 
}

function getElementsById(ctrl, name) 
{ 
	return getElements(ctrl, "id", name); 
}

function getElementsOfInput(name) 
{ 
	return getElementsByName("input", name); 
}

// ====================================
// Radio,Checkbox控件的点击事件
// 后续用span对文字的描述即可
function InputAction(objname, idx)
{
	var obj = getElementsOfInput(objname);
	if(obj==null) return;
	if(!obj[idx].checked) 
		obj[idx].checked = true;
}

// 获得e控件的绝对位置
function GetPosition(e) 
{   
	var t = e.offsetTop;   
	var l = e.offsetLeft;   
	var height = e.offsetHeight;   
	while(e = e.offsetParent) { t += e.offsetTop;l += e.offsetLeft; }
	return {x: l,y: t};
}

// 背景变暗的弹出窗口
function PopupShow(title, url)
{
	var w = 560;
	var h = 340;
	var titleheight = "22"; // 提示窗口标题高度
	var bordercolor = "#666699"; // 提示窗口的边框颜色
	var titlecolor = "#FFFFFF"; // 提示窗口的标题颜色
	var titlebgcolor = "#666699"; // 提示窗口的标题背景色
	var bgcolor = "#FFFFFF"; // 提示内容的背景色

	var iWidth = document.documentElement.clientWidth;
	var iHeight = document.body.scrollHeight + 24; //document.documentElement.clientHeight;
	var vHeight = document.documentElement.clientHeight;
	var bgObj = document.createElement("div");
	bgObj.style.cssText = "position:absolute;left:0px;top:0px;width:"+iWidth+"px;height:"+Math.max(document.body.clientHeight, iHeight)+"px;filter:alpha(opacity=55);opacity:0.55;background-color:#000000;z-index:101;";
	document.body.appendChild(bgObj);

	var msgObj=document.createElement("div");
	msgObj.style.cssText = "position:absolute;font:11px '宋体';top:"+(vHeight-h)/2+"px;left:"+(iWidth-w)/2+"px;width:"+w+"px;height:"+h+"px;text-align:center;border:1px solid "+bordercolor+";background-color:"+bgcolor+";padding:1px;line-height:22px;z-index:102;";
	document.body.appendChild(msgObj);

	var table = document.createElement("table");
	msgObj.appendChild(table);
	table.style.cssText = "margin:0px;border:1px;padding:0px;border-collapse:collapse;border:solid 1px " + titlebgcolor;
	table.cellSpacing = 0;
	var tr = table.insertRow(-1);
	tr.style.cssText = "height:" + titleheight + "px;";
	var titleBar = tr.insertCell(-1);
	titleBar.style.cssText = "width:100%;text-align:left;padding:3px;margin:0px;font:bold 13px '宋体';color:"+titlecolor+";border:1px solid " + bordercolor + ";cursor:move;background-color:" + titlebgcolor;
	titleBar.style.paddingLeft = "10px";
	titleBar.innerHTML = title;

	var moveX = 0;
	var moveY = 0;
	var moveTop = 0;
	var moveLeft = 0;
	var moveable = false;

	var docMouseMoveEvent = document.onmousemove;
	var docMouseUpEvent = document.onmouseup;

	titleBar.onmousedown = function() 
	{
		var evt = getEvent();
		moveable = true;
		moveX = evt.clientX;
		moveY = evt.clientY;
		moveTop = parseInt(msgObj.style.top);
		moveLeft = parseInt(msgObj.style.left);

		document.onmousemove = function() 
		{
			if (moveable) 
			{
				var evt = getEvent();
				var x = moveLeft + evt.clientX - moveX;
				var y = moveTop + evt.clientY - moveY;
				if ( x > 0  && ( x + w < iWidth)  &&  y > 0  &&  (y + h < iHeight) ) {
					msgObj.style.left = x + "px";
					msgObj.style.top = y + "px";
				}
			}
		};

		document.onmouseup = function () 
		{
			if (moveable) 
			{
				document.onmousemove = docMouseMoveEvent;
				document.onmouseup = docMouseUpEvent;
				moveable = false;
				moveX = 0;
				moveY = 0;
				moveTop = 0;
				moveLeft = 0;
			}
		};
	}

	var closeBtn = tr.insertCell(-1);
	closeBtn.style.cssText = "cursor:pointer; padding:2px;background-color:" + titlebgcolor;
	closeBtn.innerHTML = "<span style='font-size:12pt; color:"+titlecolor+";'>×</span>";

	closeBtn.onclick = function()
	{
		document.body.removeChild(bgObj);
		document.body.removeChild(msgObj);
	}
	var msgTr = table.insertRow(-1);
	msgTr.style.cssText = "height:" + (h-titleheight-5) + "px;";
	var msgBox = msgTr.insertCell(-1);
	msgBox.style.cssText = "font:12px '宋体';padding:10px;";
	msgBox.colSpan  = 2;
	if(url.substr(0,6)=="http:/") 
		msgBox.innerHTML = "<iframe src=\"" + url + "\" width=\"" + (w-20-4) + "\" height=\"" + (h-titleheight-20-10) + "\" frameborder=\"no\" scrolling=\"no\"></iframe>";
	else
		msgBox.innerHTML = url;

	// 获得事件Event对象，用于兼容IE和FireFox
	function getEvent() 
	{
		return window.event || arguments.callee.caller.arguments[0];
	}

	function getPosition() 
	{
		var top = document.documentElement.scrollTop;
		var left = document.documentElement.scrollLeft;
		var height = document.documentElement.clientHeight;
		var width = document.documentElement.clientWidth;
		return {top:top,left:left,height:height,width:width };
	}

	window.onscroll = function ()
	{
		var Position = getPosition();
		var leftadd = (Position.width - w)/2;
		var topadd = (Position.height - h)/2;

		msgObj.style.top = (Position.top + topadd) +"px";
		//msgObj.style.left = (Position.left + leftadd) +"px";
	};
}

// ====================================
// End of Basic.js