// JavaScript Document
var digits = "0123456789";
var phoneNumberDelimiters = "()- ";
var validWorldPhoneChars = phoneNumberDelimiters + "+";
var minDigitsInIPhoneNumber = 10;
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 trim(s)
{   var i;
    var returnString = "";
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (c != " ") returnString += c;
    }
    return returnString;
}
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 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
var brchr=strPhone.indexOf("(")
if(strPhone.indexOf("(")!=-1 && strPhone.charAt(brchr+2)!=")")return false
if(strPhone.indexOf("(")==-1 && strPhone.indexOf(")")!=-1)return false
s=stripCharsInBag(strPhone,validWorldPhoneChars);
return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}

function msgconf()
{
var m=document.getElementById("uname").value;
if(m.length<=4)
{
document.getElementById("name").innerHTML='Please enter valid data. Length of name is less'
document.getElementById("uname").select();
document.getElementById("uname").focus();
return false;
}

var mob=document.getElementById("mobile_no").value;

if (checkInternationalPhone(mob)==false){
		alert("Please Enter a Valid Phone Number");
		document.getElementById("mobileno").innerHTML='Please enter valid contact number.';
		document.getElementById("mobile_no").select();
		document.getElementById("mobile_no").focus();
		return false;
	}

var emailID=document.getElementById('umailid');

if ((emailID.value==null)||(emailID.value=="")){
        document.getElementById("name").innerHTML=''
        document.getElementById("mailid").innerHTML='Please Enter your Email ID'
		emailID.focus()
		return false
}
if (echeck(emailID.value)==false){
	    document.getElementById("name").innerHTML='' 

		emailID.value=""
		emailID.focus()
		return false
}

var fresher=document.resume.level[0].checked;
var expe=document.resume.level[1].checked;

if(fresher==false && expe==false) {
	document.getElementById("userlevel").innerHTML='<br>Please check any level'
	return false;
}

else
{
document.getElementById("name").innerHTML=''
document.getElementById("mobileno").innerHTML=''
document.getElementById("mailid").innerHTML=''
alert('Successfully inserted')
return true
}
}

function echeck(str) {
var emailID=document.getElementById("mailid");
		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   document.getElementById("name").innerHTML=''
		   emailID.innerHTML='&nbsp;Invalid E-mailID'
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   document.getElementById("name").innerHTML=''
           emailID.innerHTML='Invalid E-mailID'
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    document.getElementById("name").innerHTML=''
			emailID.innerHTML='Invalid E-mailID'
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    document.getElementById("name").innerHTML=''
			emailID.innerHTML='Invalid E-mailID'
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    document.getElementById("name").innerHTML=''
			emailID.innerHTML='Invalid E-mailID'
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    document.getElementById("name").innerHTML=''
			emailID.innerHTML='Invalid E-mailID'
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    document.getElementById("name").innerHTML=''
			emailID.innerHTML='Invalid E-mailID'
		    return false
		 }
         
		 document.getElementById("name").innerHTML='' 
		 emailID.innerHTML=''   
 		 return true					
}