function Trim()
{
	return this.replace(/\s+$|^\s+/g,"");
}

function strTrim(s)
{
	return rtrim(ltrim(s)); 
}
//去左空格; 
function ltrim(s)
{
	return s.replace( /^\s*/, ""); 
} 
//去右空格; 
function rtrim(s){ 
	return s.replace( /\s*$/, ""); 
}
		
String.prototype.Trim=Trim;
function CheckString(string,content)
{
	var count=0;
	var CheckArray=new Array("<",">","##","$","&");
	for(i=0;i<string.length;i++)
	{
		for(j=0;j<CheckArray.length;j++)
		{
			if(string.substring(i,i+1)==CheckArray[j])
			{
				count++;
				break;
			}
		}
	}
	if(count>0)
	{
		//alert("在"+content+"中包含了非法字符，请重新设置");
		alert("Contains illegal characters in the "+content+",please re-instated")
		return false;
	}
	else
	{
		return true;
	}
}

function checkemail(email)
{
	var pn_0=email.indexOf("@");
	var pn_1=email.indexOf(".",pn_0);
	var pn_2=email.length;
	if(pn_0<1||pn_1<pn_0+2||pn_1+2>pn_2)
	{return false;}
	else
	{return true;}
}

function verifyLogin()
{
	var loginEmail = document.getElementById("Email").value;
	var loginPwd   = document.getElementById("Password").value;
	if(strTrim(loginEmail).length<=0)
	{
		alert('Please enter your  email address!');
		return false;
	}
	if(!checkemail(loginEmail))
	{
		alert('Please enter your valid email address!');
		return false;
	}
	if(strTrim(loginEmail).length<=0)
	{
		alert('Please enter your password!');
		return false;
	}
	document.getElementById("index_login").submit();
}