function checkemail(){
										var testresults;			
										var str=document.callback_form.email.value;
										var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
										if (filter.test(str))
										testresults=true
										else				
										testresults=false				
										return (testresults)			
								}


                function ValidateForm(){                	               	
                	
 				          var tbl2=document.getElementById("firstid");
				          var tbl3=document.getElementById("lastid");
				          var tbl4=document.getElementById("emailid");
				          var tbl5=document.getElementById("warning");
                	
                	tbl5.innerHTML='';                	
                	tbl2.className='bodyblack';
                	tbl3.className='bodyblack';
                	tbl4.className='bodyblack';
                	
                       
                        //make sure that the first name is not blank.
                        if (document.callback_form.first_name.value.length == 0)  {
                                //it isn't so show the user an alert and go to that field
                                tbl2.className='bodyred'                                
                                tbl5.innerHTML='Please enter your first name'
                                document.callback_form.first_name.focus();
                                //and return false so the form doesn't get submitted
                                return false;
                        }
                        else
                        {tbl2.className='bodyblack'}
                        
                        
                        //make sure that the last name is not blank.
                        if (document.callback_form.last_name.value.length == 0)  {
                                //it isn't so show the user an alert and go to that field
                                tbl3.className='bodyred'                                
                                tbl5.innerHTML='Please enter your last name'
                                document.callback_form.last_name.focus();
                                //and return false so the form doesn't get submitted
                                return false;
                        }
                        else
                        {tbl3.className='bodyblack'}
                       

                        //make sure that the email is not blank.
                        if (checkemail()==false)  {
                                //it isn't so show the user an alert and go to that field
                                tbl4.className='bodyred'
                                tbl5.innerHTML='Please enter a valid email address'
                                document.callback_form.email.focus();
                                //and return false so the form doesn't get submitted
                                return false;
                        }
                        else
                        {tbl4.className='bodyblack'}                       
                                                                      
                        
                        //everything checks out, submit the form
                        return true;
                }