//对产品列表页左边菜单的操作
function SpanDisplayAction(cid,acobj,urls)
{
	if(cid != "")
	{
		var obj = document.getElementById(cid);
		obj.style.display = (obj.style.display == "none") ? "inline" : "none";
	}
	acobj.className = (acobj.className == "leftmenured") ? "leftmenuyellow" : "leftmenured";
	acobj.parentElement.className = (acobj.parentElement.className == "leftmenuchecked") ? "leftmenunotcheck" : "leftmenuchecked";//修改td的属性
	if(urls != "")
	{
		window.location.href(urls);
	}
}

function ShowBigImage(obj)
{
	document.getElementById("imgBigImage").src = obj.src;
}

function ShowDialog(htmlurl,url,width)
{
	//alert(htmlurl+"\n"+url+"\n"+width);
	var features = "dialogWidth:" + width + ";center:yes;help:no;resizable:yes;status:no;scroll:auto;";
	window.showModelessDialog(htmlurl,url,features);
}

function ShowWindow(url,width,height)
{
	var feature = "toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=" + width + ",height=" + height;
	window.open(url,"",feature);
}

//限制输入，只能输入数字
function KeyPress(objTR)
{	
	var txtval=objTR.value;		
	
	var key = event.keyCode;

	if(key < 48||key > 57)
	{		
		event.keyCode = 0;
	}
}

//限制只能输入数字和一个小数点
function KeyPressPoint(objTR)
{	
	var txtval=objTR.value;
	
	var key = event.keyCode;

	if((key < 48||key > 57)&&key != 46)
	{		
		event.keyCode = 0;
	}
	else
	{
		if(key == 46)
		{
			if((objTR.value.length == 0) || (objTR.value.indexOf('.') >= 1))
			{
				event.keyCode = 0;
			}
		}
	}
}

//限制只能输入数字、小数点、横线(-)及正反斜线(/、\)
function KeyPressSign(objTR)
{	
	var txtval=objTR.value;
	
	var key = event.keyCode;

	if((key < 48||key > 57)&&(key != 46) && (key !=45) && (key !=47) && (key!=92))
	{		
		event.keyCode = 0;
	}
}
//限制只能输入数字和横线(-)
function KeyPressLine(objTR)
{	
	var txtval=objTR.value;
	
	var key = event.keyCode;

	if((key < 48||key > 57)&&(key != 45))
	{		
		event.keyCode = 0;
	}
}

function  SendToMyFriend(ProdName,url)
{
	content="我在兰州黄河锌品有限责任公司的网站发现了一个有趣的东西，叫" + ProdName + "，你看看呀，网址是：" + url;
	window.clipboardData.setData("Text",  content);
	alert("信息已经复制到剪贴板，请通过QQ、MSN等即时通讯工具发送给你的朋友。");
}

function  SendToMyFriend2(url)
{
	content="这是兰州黄河锌品有限责任公司的网站，你来看看有没有你要的东西呀，网址是：" + url;
	window.clipboardData.setData("Text",  content);
	alert("信息已经复制到剪贴板，请通过QQ、MSN等即时通讯工具发送给你的朋友。");
}

//限制图片的长宽
function ImageResize(obj,MaxImagWidth,MaxImagHeight)
{	//alert(obj);

	var ImagWidth=obj.width;
	var ImagHeight=obj.height;
	var TempImagWidth = ImagWidth;
	var TempImagHeight = ImagHeight;	

	//1\如果只限制宽度，则处理宽度就可以了
	if ((MaxImagWidth!=null&&MaxImagWidth>0)&&MaxImagHeight==0)
	{if(ImagWidth>MaxImagWidth)obj.width=MaxImagWidth;}
	
	
	//2\如果只限制高度，则处理高度就可以了
	if ((MaxImagHeight!=null&&MaxImagHeight>0)&&MaxImagWidth==0)
	{if(ImagHeight>MaxImagHeight)obj.height=MaxImagHeight;}	
	
	
	//3\如果限制高度和宽度，则进行复杂的处理
	if (MaxImagHeight!=null&&MaxImagHeight>0&&MaxImagWidth!=null&&MaxImagWidth>0)
	{
		//重新计算图片的长度和高度
		//先限制图片的宽度
		//---------------------------------------------------
		//情况1：图片的宽度超过最大限定宽度
		if(ImagWidth > MaxImagWidth)
		{
			var TempWidth,TempHeight;
			//第一次计算
			TempWidth = MaxImagWidth;
			//计算图片的高度
			TempHeight = ImagHeight / ImagWidth * MaxImagWidth;
		
			//第二次计算
			//判断图片的高度是否超出制定的高度
			if(TempHeight > MaxImagHeight)
			{
				TempHeight = MaxImagHeight;
				//重新计算图片的宽度
				TempWidth = ImagWidth / ImagHeight * MaxImagHeight;
			}
			ImagWidth = TempWidth;
			ImagHeight = TempHeight;
		}
		//情况2：图片的宽度不超过最大限定宽度，但是高度超过了限定宽度
		else if(ImagHeight > MaxImagHeight)
		{
			ImagHeight = MaxImagHeight;
			ImagWidth = TempImagWidth / TempImagHeight * MaxImagHeight;
		}
		obj.width=ImagWidth;
		obj.height=ImagHeight;
	}
}
/*读取和写入cookies*/
function writeCookie(name, value, hours)

{

  var expire = "";

  if(hours != null)

  {

    expire = new Date((new Date()).getTime() + hours * 3600000);

    expire = "; expires=" + expire.toGMTString();

  }

  document.cookie = name + "=" + escape(value) + expire;

}
function readCookie(name)

{

  var cookieValue = "";

  var search = name + "=";

  if(document.cookie.length > 0)

  { 

    offset = document.cookie.indexOf(search);

    if (offset != -1)

    { 

      offset += search.length;

      end = document.cookie.indexOf(";", offset);

      if (end == -1) end = document.cookie.length;

      cookieValue = unescape(document.cookie.substring(offset, end))

    }

  }

  return cookieValue;

}
/*读取和写入cookies结束*/
//搜索
function Search(sel,txt)
{
	var dplSearch=document.getElementById(sel);
	var txtSearch=document.getElementById(txt);
	var url;
	if(dplSearch.selectedIndex==0)
	{
		url="/ProductsCenter/index.aspx?search="+txtSearch.value;
	}
	else
	{
		url="/NewsCenter/index.aspx?search="+txtSearch.value;
	}
	location.href=url;	
}


	//获取元素的纵坐标 
	function getTop(e){ 
		var offset=e.offsetTop; 
		if(e.offsetParent!=null) offset+=getTop(e.offsetParent); 
		return offset; 
	} 
	//获取元素的横坐标 
	function getLeft(e){ 
		var offset=e.offsetLeft; 
		if(e.offsetParent!=null) offset+=getLeft(e.offsetParent); 
		return offset; 
	} 
	
	
//用于登录的跳转
function Redirect(url)
{
	var urls = "";
	var p = document.parentWindow.parent.location.href.toLowerCase();
	if(p.indexOf("redirect") > 0)
	{
		var s = p.split("&");
		var tmp = s[0].split("?");
		if(url.indexOf("dealersarea") > 0)
		{
			url = tmp[0] + "?UserID=dealers&" + s[1];
		}
		else
		{
			url = tmp[0] + "?UserID=user&" + s[1];
		}
		urls = url;
	}
	else
	{
		urls = url;
	}
	top.location.href(urls);
}
function SearchIndex()
{
	if(CheckSearchInput())
	{
		var type = document.getElementById("product");
		if(type.checked == true)
		{
			top.location.href("/Products/Default.aspx?search=" + encodeURI(document.getElementById("txtKey").value));
		}
		else
		{
			top.location.href("/News/Index.aspx?search=" + encodeURI(document.getElementById("txtKey").value));
		}
	}
}
function CheckSearchInput()
{
	if(document.getElementById("txtKey").value == "")
	{
		document.getElementById("spanKey").style.display = "inline";
		document.getElementById("txtKey").onkeypress = function(){ document.getElementById("spanKey").style.display = "none";document.getElementById("txtKey").onkeypress = function(){}; };
		return false;
	}
	return true;
}

//预载入图像
function PreLoadImages()
{
	var d=document;
	if(d.images)
	{
		if(!d.p)
			d.p=new Array();
		var i,j=d.p.length,a=PreLoadImages.arguments;
		for(i=0; i<a.length; i++)
		{
			if(a[i].indexOf("#")!=0)
			{
				d.p[j]=new Image;
				d.p[j++].src=a[i];
			}
		}
	}
}