function echeck(str) 
{
	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1)
	{
	   alert("Invalid E-mail")
	   return false
	}
	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
	{
		alert("Invalid E-mail")
		return false
	}
	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
	{
		alert("Invalid E-mail")
		return false
	}
	if (str.indexOf(at,(lat+1))!=-1)
	{
		alert("Invalid E-mail")
		return false
	}
	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
	{
		alert("Invalid E-mail")
		return false
	}
	if (str.indexOf(dot,(lat+2))==-1)
	{
		alert("Invalid E-mail")
		return false
	}
	if (str.indexOf(" ")!=-1)
	{
		alert("Invalid E-mail")
		return false
	}
	return true;
}

function isInteger(s)
{
	var i;
	for (i = 0; i < s.length; i++)
	{   
		var c = s.charAt(i);
		if (((c < "0") || (c > "9"))) return false;
	}
	return true;
}

function stripCharsInBag(s, bag)
{   var i;
	var returnString = "";
	for (i = 0; i < s.length; i++)
	{   
		var c = s.charAt(i);
		if (bag.indexOf(c) == -1) returnString += c;
	}
	return returnString;
}

function checkInternationalPhone(strPhone)
{
	var s;
	var digits = "0123456789";
	var phoneNumberDelimiters = "()- ";
	var validWorldPhoneChars = phoneNumberDelimiters + "+";
	var minDigitsInIPhoneNumber = 10;
	s=stripCharsInBag(strPhone,validWorldPhoneChars);
	return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}

function fmInfo_onsubmit() 
{
	if (document.fmInfo.name.value=="") 
	{
		alert ("Please Enter Your Name");
			document.fmInfo.name.focus();
		return false;
	}
	if (document.fmInfo.phone.value=="") 
	{
		alert ("Please Enter Your Phone");
			document.fmInfo.phone.focus();
		return false;
	}
	if (checkInternationalPhone(document.fmInfo.phone.value)==false)
	{
		alert("Please Enter a Valid Phone Number")
		document.fmInfo.phone.focus()
		return false
	}
	if (document.fmInfo.email.value=="") 
	{
		alert ("Please Enter Your Email");
		document.fmInfo.email.focus();
		return false;
	}
	if (echeck(document.fmInfo.email.value)==false)
	{	
		document.fmInfo.email.focus()
		return false
	}
	if (document.fmInfo.message.value=="") 
	{
		alert ("Please Enter Your Message");
		document.fmInfo.message.focus();
		return false;
	}
	return true 
}