function validate_tell_friend()
{
    //alert('aaa');
    var forms = document.tell_friend;
    var emailID = forms.sender_email;
    //var s_name = document.tell_friend.sender_name;
        
    if(forms.sender_name.value == '')
    {
        alert('Please enter your name.');
        forms.sender_name.focus();
        return false;
    }
    else if( /[^A-Za-z\s']/.test(forms.sender_name.value) )
    {
        alert('Please enter a valid name.');
        forms.sender_name.focus();
        return false;   
    }       
    else if ((emailID.value==null)||(emailID.value==""))
    {
        alert("Please Enter your Email ID");
        emailID.focus();
        return false;
    }
    else if (echeck(emailID.value)==false)
    {
        alert("Invalid E-mail ID");
        emailID.focus();
        return false;
    }   
    else if(forms.name.value == '')
    {
        alert("Please Enter friend name");  
        forms.name.focus();
        return false;
    }
    else if(forms.email.value == '')
    {
        alert("Please Enter friend E-mail ID"); 
        forms.email.focus();
        return false;
    }
    else if (echeck(forms.email.value)==false)
    {
        alert("Invalid friend E-mail ID");
        forms.email.focus();
        return false;
    }   
    else if(forms.email2.value == '' && forms.name2.value != '')
    {
        alert("Please Enter friend E-mail ID"); 
        forms.email2.focus();
        return false;
    }
    else if (echeck(forms.email2.value)==false && forms.name2.value != '')
    {
        alert("Invalid friend E-mail ID");
        forms.email2.focus();
        return false;
    }
    else if(forms.email3.value == '' && forms.name3.value != '')
    {
        alert("Please Enter friend E-mail ID"); 
        forms.email3.focus();
        return false;
    }
    else if (echeck(forms.email3.value)==false && forms.name3.value != '')
    {
        alert("Invalid friend E-mail ID");
        forms.email3.focus();
        return false;
    }
    else if(forms.email4.value == '' && forms.name4.value != '')
    {
        alert("Please Enter friend E-mail ID"); 
        forms.email4.focus();
        return false;
    }
    else if (echeck(forms.email4.value)==false && forms.name4.value != '')
    {
        alert("Invalid friend E-mail ID");
        forms.email4.focus();
        return false;
    }
    else if(forms.email2.value == '' && forms.name2.value != '')
    {
        alert("Please Enter friend E-mail ID"); 
        forms.email2.focus();
        return false;
    }
    else if (echeck(forms.email5.value)==false && forms.name5.value != '')
    {
        alert("Invalid friend E-mail ID");
        forms.email5.focus();
        return false;
    }
    ///..........................................................................
    //var name_counter = 0;
        /*for(i=0; i<friendName_arr.length; i++)
        {                        
             if(friendName_arr[i].value != '')
              {
                name_counter++;             
              }                         
          }*/
          //alert(propId_counter);
          
          //if(propId_counter < 2){ alert('Select Min 2 property');  return false; }
          //else if(propId_counter > 3){ alert('Max 3 property can be compared');  return false; }
    ///.........................................................................
    
    tell_friend('resp_msg');
    return false;
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
function validate_reg()
{
    var emailID = document.reg_form.email;
    var Phone = document.reg_form.phone;
    
    if(document.reg_form.f_name.value == '')
    {
        alert('Please enter First name.');
        document.reg_form.f_name.focus();
        return false;
    }
    else if( /[^A-Za-z\s']/.test(document.reg_form.f_name.value) )
    {
        alert('Please enter valid First name.');
        document.reg_form.f_name.focus();
        return false;   
    }
    else if(document.reg_form.l_name.value == '')
    {
        alert('Please enter Last name.');
        document.reg_form.l_name.focus();
        return false;
    }
    else if( /[^A-Za-z\s']/.test(document.reg_form.l_name.value) )
    {
        alert('Please enter valid Last name.');
        document.reg_form.l_name.focus();
        return false;   
    }
    /*else if(document.reg_form.address.value == '')
    {
        alert('Please enter address.');
        document.reg_form.address.focus();
        return false;
    }*/
    else if(document.reg_form.city.value == '')
    {
        alert('Please enter city.');
        document.reg_form.city.focus();
        return false;
    }
    /*else if(document.reg_form.state.value == '')
    {
        alert('Please enter state.');
        document.reg_form.state.focus();
        return false;
    }*/
    /*else if(document.reg_form.country.value == '')
    {
        alert('Please enter country.');
        document.reg_form.country.focus();
        return false;
    }*/
    else if (checkInternationalPhone(Phone.value)==false && Phone.value != "")
    {
        alert("Please Enter a Valid Phone Number")
        //Phone.value = "";
        Phone.focus();
        return false;
    }   
    else if ((emailID.value==null)||(emailID.value==""))
    {
        alert("Please Enter your Email ID");
        emailID.focus();
        return false;
    }
    else if (echeck(emailID.value)==false)
    {
        alert("Invalid E-mail ID");
        emailID.focus();
        return false;
    }
    else if(document.reg_form.password.value == '')
    {
        alert('Please enter password.');
        document.reg_form.password.focus();
        return false;
    }
    else if (document.reg_form.password.value.length < 4)
    {
        alert('Please enter valid password.');
        document.reg_form.password.focus();
        return false
    }
    else if(document.reg_form.c_password.value != document.reg_form.password.value)
    {
        alert('Please enter valid confirm password.');
        document.reg_form.c_password.focus();
        return false;
    }   
    
    registration('resp_msg');
    return false;
}