// Declaring required variables
	var digits = "0123456789";
	// non-digit characters which are allowed in phone numbers
	var phoneNumberDelimiters = "()- ";
	// characters which are allowed in international phone numbers
	// (a leading + is OK)
	var validWorldPhoneChars = phoneNumberDelimiters + "+";
	// Minimum no of digits in an international phone no.
	var minDigitsInIPhoneNumber = 7;
	
	function isInteger(s)
	{   var i;
		for (i = 0; i < s.length; i++)
		{   
			// Check that current character is number.
			var c = s.charAt(i);
			if (((c < "0") || (c > "9"))) return false;
		}
		// All characters are numbers.
		return true;
	}
	function trim(s)
	{   var i;
		var returnString = "";
		// Search through string's characters one by one.
		// If character is not a whitespace, append to returnString.
		for (i = 0; i < s.length; i++)
		{   
			// Check that current character isn't whitespace.
			var c = s.charAt(i);
			if (c != " ") returnString += c;
		}
		return returnString;
	}
	function stripCharsInBag(s, bag)
	{   var i;
		var returnString = "";
		// Search through string's characters one by one.
		// If character is not in bag, append to returnString.
		for (i = 0; i < s.length; i++)
		{   
			// Check that current character isn't whitespace.
			var c = s.charAt(i);
			if (bag.indexOf(c) == -1) returnString += c;
		}
		return returnString;
	}
	
	function checkInternationalPhone(strPhone){
		var bracket=3
		strPhone=trim(strPhone)
		if(strPhone.indexOf("+")>1) return false
		if(strPhone.indexOf("-")!=-1)bracket=bracket+1
		if(strPhone.indexOf("(")!=-1 && strPhone.indexOf("(")>bracket)return false
		if(strPhone.indexOf("(")==-1 && strPhone.indexOf(")")!=-1)return false
		s=stripCharsInBag(strPhone,validWorldPhoneChars);
		return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
	}
	
	function ValidateForm(){
		var Phone=document.applyForm.s_phone
		var Name=document.applyForm.s_name
		var Email=document.applyForm.s_email
		
		if ((Name.value==null)||(Name.value=="")){
			alert("Минимальная длина имени 3 символа")
			Name.focus()
			return false
		}
		if (Name.value.length<=3){
			alert("Минимальная длина имени 3 символа")
			Name.focus()
			return false
		}
		if ((Phone.value==null)||(Phone.value=="")){
			alert("Минимальная длина телефона 7 символов")
			Phone.focus()
			return false
		}
		if (checkInternationalPhone(Phone.value)==false){
			alert("Минимальная длина телефона 7 символов")
			Phone.value=""
			Phone.focus()
			return false
		}
		if ((Email.value==null)||(Email.value=="")){
			alert("Введите правильный email")
			Name.focus()
			return false
		}
		return true
	 }