// JScript 文件

function change(objid,str)
{
	isValid = false;
	var obj = document.getElementById(objid);
	document.getElementById("defaulttxt").style.display="none";
	obj.style.display="";
	if(str != "" )
	{
		obj.innerText = "  *"+str;
		obj.style.display = "";
	}
	else
	{
		obj.innerText = "";
		obj.style.display = "none";
	}
}

function checkUser(str)
{
	if(str == "" || str.length<6)
	{
		change("check","At least 6 characters!");
		isValid = false;
	}
	else
	{
       var obj = new checkUserObject(str);
       obj.get_user();
	}
}
function checkPwd(str)
{
	if(str.length<6 || str.length>15)
	{
		change("checkpwd","Between 6~ 15 characters");
		document.getElementById("defpwd").style.display="none";
		isValid = false;
	}
	else
	{
		change("checkpwd","");
		document.getElementById("defpwd").style.display="";
		isValid = true;
	}
}
function checksame()
{
	ps1 = document.getElementById("ctl00_ContentPlaceHolder1_password1").value;
	ps2 = document.getElementById("ctl00_ContentPlaceHolder1_password2").value;
	if(ps1 != ps2)
	{
	   change("checkps","The two password not the same!")
	   document.getElementById("defps").style.display="none";
	   isValid = false;
	}
	else
	{
	   change("checkpwd","");
	   document.getElementById("defpwd").style.display="";
	   isValid = true;
	}
}

function ch()
	 {
	   var x = document.getElementById("ctl00_ContentPlaceHolder1_eu");
	   var y = document.getElementById("ctl00_ContentPlaceHolder1_submit");
	   if(x.checked)
	   {
	     y.disabled = false;
	   }
	   else
	   {
	     y.disabled = true;
	   }
	 }
 function bill_onclick()
	 {
	   if(document.getElementById("ctl00_ContentPlaceHolder1_billing").checked)
	   {
	      document.getElementById("table2").style.display = "";
	   }
	   else
	   {
	      document.getElementById("table2").style.display = "none";
	   }
	 }
function checkEmail(str)
{
	if(!isValidEmail(str))
	{
		change("chkemail","Invalid email address");
	}
	else
	{
		change("chkemail","");
		isValid = true;
	}
	if(str.split("@")[1]=="aol.com")
	{
	   document.getElementById("tablesorry").style.display= "";
	   isValid = false;
	}
	else
	{
	   document.getElementById("tablesorry").style.display = "none";
	}
}
function canSubmit(e)
{
	if(isValid == false)
	{	
		document.getElementById("required").style.display="";
		window.scroll(0,0);
		document.getElementById("UserID").focus();
		e.returnValue = false;
		return false;
	}
	else
	{
		e.returnValue = true;
		return true;
	}
}
function changeBirth()
{
	var selYear = document.getElementById("birthyear");
	var selMonth = document.getElementById("birthmonth");
	var selDays = document.getElementById("birthdays");
	changeDay(selYear,selMonth,selDays);
}
function changeDay(objYear,objMonth,objDays)
{
	var currentYear = parseInt(objYear.options[objYear.selectedIndex].value);
	var currentMonth = parseInt(objMonth.options[objMonth.selectedIndex].value);
	var days = getDaysInMonth(currentYear,currentMonth);
	objDays.options.length=0;
	for(i=1;i<=days;i++)
	{
		var op = window.document.createElement("OPTION");
		op.value = i;
		op.innerHTML = i;
		objDays.appendChild(op);
	}
}
function getDaysInMonth(year, month)
{
    var date = new Date(year, month, 0);
    return date.getDate();
}


function vatcheck()
{
    var vat;
	var tijiao;
    var num;
	num = document.getElementById("ctl00_ContentPlaceHolder1_number");
	vat = document.getElementById("ctl00_ContentPlaceHolder1_eu");
	tijiao = document.getElementById("ctl00_ContentPlaceHolder1_submit");
	if(vat.checked)
	{
	   if(num.value != "")
	   {
		  tijiao.disabled = false;
	   }
	   else
	   {
	      tijiao.disabled = true;
	   }
	 }
	 else
     {
	      tijiao.disabled = false;
	 }
} 
function numchange()
{
   var num;
   num = document.getElementById("ctl00_ContentPlaceHolder1_number");
   if(num.value!= "")
   {  
	 document.getElementById("ctl00_ContentPlaceHolder1_submit").disabled = false;
   }
   else
   {
	 document.getElementById("ctl00_ContentPlaceHolder1_submit").disabled = true;
   }
}