function IsNumber(sText)
{
   var ValidChars = "0123456789";
   var IsNumber=true;
   var Char;
   for (i = 0; i < sText.length && IsNumber == true; i++) 
   { 
	  Char = sText.charAt(i); 
	  if(ValidChars.indexOf(Char) == -1) 
	  {
		 IsNumber = false;
	  }
   }
   return IsNumber;
}


function ValidateEmail( Email )
{
	var atCharPresent = false;
	var dotPresent = false;
	for ( var Idx = 0; Idx < Email.length; Idx++ )
	{
		if ( Email.charAt ( Idx ) == '@' )
			atCharPresent = true;
		if ( Email.charAt ( Idx ) == '.' )
			dotPresent = true;
	}
	
	for ( var Idx = 0; Idx < Email.length; Idx++ )
	{
		if ( Email.charAt(Idx) == '	'
			|| Email.charAt(Idx) == ' '
			|| Email.charAt(Idx) == ','
			|| Email.charAt(Idx) == ';' )
		{
			//alert( "No spaces or other invalid characters are not allowed in the email. Please enter only one main email address" );
			document.edit_profile.jsemail.focus( );
			return false;
		}
	}
	
	if ( !atCharPresent || !dotPresent )
		return false;
		
		var last_ar=Email.split(".");
		if (last_ar[last_ar.length-1].length<2)
			return false;

	return true;
}


function validate(form)
{
 var num= (document.refer_frd.ref_num.value) * 3 ;
 var name=document.getElementsByName('frd_name[]');
 var mobile=document.getElementsByName('mobile[]');
 var email=document.getElementsByName('email[]');
 
        for (var i = 0; i < name.length; i++)
        {        
           if (name[i].value=="")
           {
             alert("Please Enter Your Friends Name");
             name[i].focus();
             return false;   
           }
		   if (mobile[i].value=="")
           {
             alert("Please Enter Friends Mobile Number");
             mobile[i].focus();
             return false;   
           }
		   if(!IsNumber(mobile[i].value))
		   {
			 alert("Please Enter Only intergers for Mobile Number");
			 mobile[i].value='';
             mobile[i].focus();
             return false;   
		   }
		   if (email[i].value=="")
           {
             alert("Please Enter The friends Email address");
             email[i].focus();
             return false;   
           }
		   if (!ValidateEmail(email[i].value))
           {
             alert("Please Enter Valid Email Address");
             email[i].focus();
             return false;   
           }
        }
		
}