// JavaScript Document

function validate(email) {
   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   var address = email;
   if(reg.test(address) == false) 
   {
      alert('Invalid Email Address');
      return false;
   }
}


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 ID");
		   return false;
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   alert("Invalid E-mail ID");
		   return false;
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
		{
		    alert("Invalid E-mail ID");
		    return false;
		}

		 if (str.indexOf(at,(lat+1))!=-1)
		 {
		    alert("Invalid E-mail ID");
		    return false;
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
		 {
		    alert("Invalid E-mail ID");
		    return false;
		 }

		 if (str.indexOf(dot,(lat+2))==-1)
		 {
		    alert("Invalid E-mail ID");
		    return false;
		 }
		
		 if (str.indexOf(" ")!=-1)
		 {
		    alert("Invalid E-mail ID");
		    return false;
		 }

 		 return true;					
	}



function EmailValidation(Element)
	{
		Flag  = 1;
		count = 0;
	
		var alp = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_@.-";
		
		if(Element.value.length > 0)
		{
			for (var i=0; i<Element.value.length; i++)
			{
				temp = Element.value.substring(i, i+1);
	
				if (alp.indexOf(temp) == -1)
				{
					Flag = 0;
				}
			} // closing the for loop
		}
		else
		{
			Flag = 0;
		}
	
		for(var i=0; i <= Element.value.length; i++)
		{
			if(Element.value.charAt(0)=='@')
			{
				Flag = 0;
				break;
			}

			if(Element.value.charAt(Element.value.length-1)=='@')
			{
				Flag = 0;
				break;
			}

			if(Element.value.charAt(i)=='@') 
			{
				count = count + 1;

				if(count>1)
				{
					Flag = 0;
					break;
				}
			  
				if((Element.value.charAt(i-1)=='.') || (Element.value.charAt(i+1)=='.'))
				{
					Flag = 0;
					break;
				}
			}
			if(Element.value.indexOf('@')==-1)
			{
				Flag = 0;		    	
				break;
			}
			if(Element.value.charAt(0)=='.')
			{
				Flag = 0;
				break;
			}
			if(Element.value.indexOf('.')==-1)
			{
				Flag = 0;		    	
				break;
			}
		  } //closing the for loop
		
		if(Element.value.charAt(Element.value.length-1) == '.')
			Flag = 0;
			
		if(Flag != 1)
		{
			alert("Invalid Email Address.");
			Element.focus();
			return 0;
		}	
		else
			return 1;
	}



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
if(  (strPhone.substr(0,1) != 9)  && (strPhone.substr(0,1) != 8) )return false;
s=stripCharsInBag(strPhone,validWorldPhoneChars);
return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}





function validateFood()
{
	  
	
	  if(document.getElementById("FirstName").value =="")
	  {
		   alert("Please enter the First Name");
		   document.getElementById("FirstName").focus();
		   return false;		   
	  }
	  if(document.getElementById("Telephone_Num").value =="")
	  {
		   alert("Please enter the Valid Phone Number");
		   document.getElementById("Telephone_Num").focus();
		   return false;		   
	  }
	  if(document.getElementById("Email").value==null || document.getElementById("Email").value=='')
		{
				 alert('please enter Email Address');
				 document.getElementById("Email").focus();
				 return false;
			
		}
		if(echeck(document.getElementById("Email").value)==false)
			{
				
				 document.getElementById("Email").focus();
			     return false;
				
			}
			
	 
		
	/*	if(document.getElementById("recaptcha_response_field").value =="")
		{
			  alert('please enter Security Code');
			  document.getElementById("recaptcha_response_field").focus();
			   return false;
		}
		if(document.getElementById("recaptcha_response_field").value != document.getElementById("recaptcha_challenge_field").value)
		{
			  alert('please enter Valid Security Code');
			  document.getElementById("recaptcha_response_field").focus();
			   return false;
		}*/
		document.getElementById("subFreeFood").value ="FREEFOOD";
		document.getElementById("foodFrm").submit();
	
}