function CompareDate()
	{
		var code = '';
		if(document.compare.fund_rate[0].checked==true)
		{
			var imglinks = 'fund/graph_rate.php?';
		}	
		else
		{	
			var imglinks = 'fund/graph.php?';
		}
		var CalendarStart = new Date(document.getElementById("startDate").value.replace("-",","));
		var CalendarEnd = new Date(document.getElementById("endDate").value.replace("-",","));
		if (CalendarStart > CalendarEnd)
		{
			alert("后面的日期需大于前面的日期！");
			return false;
		}
		var selectedValues = document.getElementById("codes");
		var values = selectedValues.value.split(",");
		if (values.length < 2)
		{
			alert("请选择基金！");
			return false;
		}
		//alert(values.length);
		for(var i=0;i<values.length;i=i+2)
		{
			code += values[i];
			if(i<values.length-2){
				code += ',';
			}
		}
		//alert(code);
		if(document.getElementById("sh").checked==true){
			imglinks += 'sh_y=1&';
		}else{
			imglinks += 'sh_y=0&';
		}
		if(document.getElementById("sz").checked==true){
			imglinks += 'sz_y=1&';
		}else{
			imglinks += 'sz_y=0&';
		}
		
		imglinks += 'code=' + code + '&';
		imglinks += 'startDate=' + document.getElementById("startDate").value +'&endDate=' + document.getElementById("endDate").value;
		
		
		document.getElementById("loading").style.display = '';
		document.getElementById("chartImage").src = imglinks;
		
		return true;
	}

	
function AddFund()
	{
		
		
		var DDL_Catalog = document.getElementById("fundcode");
		var selectedValues = document.getElementById("codes");		
		if (DDL_Catalog.selectedIndex != -1 && DDL_Catalog.selectedIndex != 0)
		{
			var option = DDL_Catalog.options[DDL_Catalog.selectedIndex];
			var values = selectedValues.value.split(",");
			if (values.length >= 10)
			{
				alert("同时只能比较5支基金！");
				return;
			}
			for(var i=0;i<values.length;i++)
			{
				if (values[i] == option.value)
				{
					alert(option.text+"已被添加");
					return;
				}
			}
			if (selectedValues.value == "")
			{
				selectedValues.value = option.value;
			}
			else
			{
				selectedValues.value += "," + option.value;
			}
			selectedValues.value += "," + option.text;
			DisplaySelectedFund();
		}
		else
		{
			alert("请选择基金！");
			return false;
		}
		//alert(selectedValues.value);
		document.getElementById('step2').style.display = '';
	}
	
	function Remove(obj)
	{
		var selectedValues = document.getElementById("codes");
		selectedValues.value = selectedValues.value.replace(obj+",", "");
		selectedValues.value = selectedValues.value.replace(","+obj, "");
		selectedValues.value = selectedValues.value.replace(obj, "");
		DisplaySelectedFund();
	}
	
	function DisplaySelectedFund()
	{
		var selectedValues = document.getElementById("codes");
		var mySelectFund = document.getElementById("mySelectFund");
		mySelectFund.innerHTML = "";
		var values = selectedValues.value.split(",")
		if (values.length > 1)
		{
			for(var i=0;i<values.length;i=i+2)
			{
				mySelectFund.innerHTML += "<span onmouseover='this.style.backgroundColor=\"#CCC\"' onmouseout='this.style.backgroundColor=\"#FFF\"' style='padding:2px; border:solid 1px #999;cursor:pointer' onClick=\"javascript:Remove('"+values[i]+","+values[i+1]+"');\" title='移除'>"+values[i+1]+"</span>&nbsp;";
			}
		}	
	}
	
	function Apply(codes)
	{
		var selectedValues = document.getElementById("codes");
		selectedValues.value = codes;
		DisplaySelectedFund();
	}