function window_resize() {
var tabSpetor=document.getElementById("tabSpetor");
tabSpetor.width=3;
}

function window_onload()
{
var prodType = getSelectedProdType();
//alert(prodType);
ProdTypeChanged(prodType);
}

//获取浏览器类型：ie或ns
function GetBrowser()
{
	var a='';
	if(window.navigator.appName.toLowerCase().indexOf('microsoft') > -1)
	{
		a= 'ie';
	}
	else
	{
		
		a = 'ns';

	}
	return a;
}

//点击单选钮时触发,传入的参数为单选钮value
function ProdTypeChanged(prodType)
{
	var BrowserType = GetBrowser() ;
	var opts =null;
	
	opts=document.forms[5].RadioGroup;
	
	for(i=0;i<opts.length;i++)
	{
		var obj = opts[i];
		
		if(obj.value !=prodType)
		{
			obj.checked = false;
		}
		else
		{
			obj.checked = true;
		}

		
	}

	var ddlStart = document.getElementById('ddlStart');
	var ddlEnd = document.getElementById('ddlEnd');
	var txtStart =document.getElementById('txtStart');
	var txtEnd =document.getElementById('txtEnd');
	
	var StartArray=null;
	StartArray = eval('start_' + prodType);


	
	
	//先将两个下拉列表清空
	ClearDropDownList(ddlStart);
	ClearDropDownList(ddlEnd);
	
	if(StartArray == null || StartArray.length == 0)
	{
		txtStart.value = '';
		txtEnd.value = '';
		return;

	}



	var startindex =0;
	if(StartArray.length ==1)
	{
		txtStart.value = StartArray[0][0];
	}
	//将起点城市数组中的元素加入到起点城市中。
	for(i=0;i<StartArray.length ;i++)
	{
		var opt=new Option();
		opt.value = StartArray[i][0];
		opt.text = StartArray[i][1];
		ddlStart.options[i] = opt;
		if(opt.value == txtStart.value && txtStart.value !='' )
		{
			startindex=i;
		}
		
	}

	ddlStart.selectedIndex = startindex;
	//startindex = ddlStart.selectedIndex;
	StartCityChanged(startindex)

}

//清空下拉列表的公用函数。
function ClearDropDownList(obj)
{
	for(i=obj.options.length -1;i>=0;i--)
	{
		obj.options[i] = null;
	}
}

//获取被选择的产品类别
function getSelectedProdType()
{

	var opts =null ;

	var BrowserType = GetBrowser() ;
	var opts =null;
	
		
	opts=document.forms[5].RadioGroup;
		
	
	
	var prodType = 0;
	for(i=0;i<opts.length;i++)
	{
		var obj = opts[i];
		if(obj.checked  )
		{
			prodType =parseInt(obj.value,10);
		}
	}

	return prodType;
}

//选择起点城市时，刷新目的城市
//参数为：选择的起始城市序号；
function StartCityChanged(startindex)
{

	var ddlStart = document.getElementById('ddlStart');
	var ddlEnd = document.getElementById('ddlEnd');
	var txtStart =document.getElementById('txtStart');
	var txtEnd =document.getElementById('txtEnd');
	
	var prodType = getSelectedProdType();
	var startCityID = ddlStart.options[startindex].value;
	txtStart.value = startCityID;
	

	var EndArray=null;
	EndArray = eval('end_' + prodType + '_' + startCityID);

	//先清空目的城市下拉列表
	ClearDropDownList(ddlEnd);
	
	
	var endIndex =0 ;
	if(EndArray.length ==1)
	{
		txtEnd.value = EndArray[0][0];
	}

	for(i = 0;i<EndArray.length;i++)
	{
		var optcity = new Option();
		optcity.value=EndArray[i][0];
		optcity.text =EndArray[i][1];
		ddlEnd.options[i] = optcity ;
		if(optcity.value == txtEnd.value && txtEnd.value !='')
		{
			endIndex = i
		}
	}
	ddlEnd.selectedIndex = endIndex ;
	EndCityChanged(endIndex);
			
}

//终点城市变化时触发的函数
//endindex:终点城市的城市ID
function EndCityChanged(endindex)
{
	var ddlEnd = document.getElementById('ddlEnd');
	
	var txtEnd =document.getElementById('txtEnd');
	txtEnd.value = ddlEnd.options[endindex].value;
}

//获取选择的所有信息，用'_'连接起来，依次是产品类别ID、起点城市ID和终点城市ID
function GetSelectedInfos()
{
	var ddlStart = document.getElementById('ddlStart');
	var ddlEnd = document.getElementById('ddlEnd');
	
	var txtStart =document.getElementById('txtStart');
	var txtEnd =document.getElementById('txtEnd');

	var prodType = getSelectedProdType();
	var startCityID ='';
	if( ddlStart.options.length >0)
	{
		startCityID = ddlStart.options[ddlStart.selectedIndex].value;
	}
	txtStart.value = startCityID;
		var endCityID = '' ;
	if(ddlEnd.options.length >0)
	{
		endCityID = ddlEnd.options[ddlEnd.selectedIndex].value; 
	}
	txtEnd.value = endCityID;
	return prodType + '_' + startCityID + '_' + endCityID;
}

	 
function MyDoPostBack(eventTarget, eventArgument) {
    var theform;
    if (window.navigator.appName.toLowerCase().indexOf('netscape') > -1) {
        theform =document.forms[5];
    }
    else {
        theform =eventTarget.form;// document.Form1;
    }
    theform.__EVENTTARGET.value = eventTarget;
    theform.__EVENTARGUMENT.value = eventArgument;
    theform.submit();
}

//是否为联盟网站
function IsLeague()
{
	var blnLeague = false;
	
	var url =new String( window.location.href );
	var at = url.indexOf("?ap=");
	if(at == -1)
	{
		
		blnLeague = false;
	}
	else
	{
		var ap = new String(url.substr(at,url.length-at));
		
		if(ap.length > 4)
		{
			blnLeague = true;
			
		}
		else
		{
							
			blnLeague = false;
		}
	}
	return blnLeague;
}