// JavaScript Document
function validate(frm){
 var name= document.getElementById('name').value;
 var email= document.getElementById('email').value;
 var company=document.getElementById('comp').value;
 var con_no= document.getElementById('con_no').value;
 var req_ment=document.getElementById('r_ment').value;
 var sucess= 1;
      if (!name) {
        document.getElementById("name_alert").style.display = "block";
		document.getElementById('name').style.border = "1px red solid";		
        sucess = 0;
        }
	      else {
			 document.getElementById("name_alert").style.display = "none";
             document.getElementById('name').style.border = "1px solid #FF9900";          
               }
			   
	  if (!email) {
        document.getElementById("email_alert").style.display = "block";
		document.getElementById('email').style.border = "1px red solid";
		document.getElementById("errmsg_email").style.display = "none";
        sucess = 0;
	
        }
	 else if(echeck(email)==false){
		  sucess = 0;
	  }
  
	   else {
		     document.getElementById("email_alert").style.display = "none";
             document.getElementById('email').style.border = "1px solid #FF9900"; 
           }
		   
			  	
	   if(!company){
		document.getElementById("comp_alert").style.display ="block";
		document.getElementById('comp').style.border = "1px red solid";		
		sucess = 0;		
        }
		
	  else{
			  document.getElementById("comp_alert").style.display = "none";
             document.getElementById('comp').style.border = "1px solid #FF9900"; 
			 }	
		
	 	if(!con_no){
		document.getElementById("cont_alert").style.display = "block";
		document.getElementById('con_no').style.border = "1px red solid";
		document.getElementById("errmsg_num").style.display = "none";
		sucess = 0;
		}
	   else if(checkInternationalPhone(con_no)==false)
		{
			document.getElementById("errmsg_num").style.display = "block";
	    	sucess = 0;
		 }
		else if(checkInternationalPhone(con_no)==true)
		{
			document.getElementById("errmsg_num").style.display = "none";
	    	
		 }
		 else{
			 document.getElementById("cont_alert").style.display = "none";
             document.getElementById('con_no').style.border = "1px solid #FF9900"; 
		 }
		 
	    if (!req_ment) {
        document.getElementById("req_alert").style.display = "block";
		document.getElementById('r_ment').style.border = "1px red solid";	
        sucess = 0;
        }
	      else {
			 document.getElementById("req_alert").style.display = "none";
             document.getElementById('r_ment').style.border = "1px solid #FF9900";          
               }
		 	   
	    if(!sucess) {
		 document.getElementById("errmsg_blank").style.display = "block";  
         return false;
       }
	  	
	
	 
       else {
           return true;
       }
}


  /* Email validations */

function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		var sucess= 1;
		if (str.indexOf(at)==-1){
		   document.getElementById("email_alert").style.display = "block";
		document.getElementById('email').style.border = "1px red solid";
        sucess = 0;
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		    document.getElementById("email_alert").style.display = "block";
		document.getElementById('email').style.border = "1px red solid";		
        sucess = 0;
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		   document.getElementById("email_alert").style.display = "block";
		document.getElementById('email').style.border = "1px red solid";		
        sucess = 0;
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    document.getElementById("email_alert").style.display = "block";
		document.getElementById('email').style.border = "1px red solid";		
        sucess = 0;
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		   document.getElementById("email_alert").style.display = "block";
		document.getElementById('email').style.border = "1px red solid";
        sucess = 0;
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		   document.getElementById("email_alert").style.display = "block";
		document.getElementById('email').style.border = "1px red solid";		
        sucess = 0;
		 }
		
		 if (str.indexOf(" ")!=-1){
		   document.getElementById("email_alert").style.display = "block";
		document.getElementById('email').style.border = "1px red solid";		
        sucess = 0;
		 }
		 
		 if (!sucess)
		 { 
		     document.getElementById("errmsg_email").style.display = "block";
			 
			 return false;
		 }
		 
		else {
         document.getElementById("errmsg_email").style.display = "none";
 		 return true;
		 }
	}


/*  phone no. validations */


function checkInternationalPhone(strPhone){

// 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 = 10;


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 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;
}