//FUNCTION TO CHECK IF FIELD IS EMPTY
function isemp(field,message) {

if (field.value == "")

{

	alert("Please key in your "+message)
	
	field.focus();

    	return false;

}



return true;

}


//--------------------------------------------------------------------------------------------------------
//FUNCTION TO CHECK IF FIELD IS EMPTY FOR (ADMINISTRATIVE QUESTIONS)
function isempquestion(field,message) {

if (field.value == "")

{

	alert("Please tell us "+message)

	field.focus();

    	return false;

}



return true;

}


//--------------------------------------------------------------------------------------------------------
//FUNCTION TO CHECK IF EMAIL IS VALID
function isValidEmail(field) {



validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;



   // search email text for regular exp matches

    if (field.value.search(validRegExp) == -1)

   {

   	alert('Please key in a valid email address.');

      	field.focus();

      	return false;

	

   }



return true;

}


//--------------------------------------------------------------------------------------------------------
//VALIDATE SELECTBOX
function isselect(field,message) {



if (field.selectedIndex <= 0)

{

	alert("Please select a "+message)

	field.focus();

    	return false;

}



return true;

}


//--------------------------------------------------------------------------------------------------------
//VALIDATE CHECKBOX
function ischeck(field,message)
{
	
	valid=false
	for(i=0;i<field.length;i++)
	{
		if(field[i].checked)
		{
			valid=true;
		}
	}

	if(!valid)
	{
		alert("Please select an "+message);
		field[0].focus();

		return false;
	}
	else
	{return true;}

}


//***** ***** ***** ***** *****     ***** ***** ***** ***** *****//
function IsCheckBoxGroupChecked(FormName, CheckBoxName, TotalCheckBox, ErrorMessage)
{
  var c1 = 0;
  var TotalCheckBoxChecked = 0;

  for(c1 = 1; c1 <= TotalCheckBox; c1++)
  {
    if(document.forms[FormName].elements[CheckBoxName + "-" + c1].checked == true)
    {
      TotalCheckBoxChecked = TotalCheckBoxChecked + 1;
    }
  }

  if(TotalCheckBoxChecked > 0)
  {
    return true;
  }
  else
  {
    document.forms[FormName].elements[CheckBoxName + "-1"].focus();
    alert(ErrorMessage);
    return false;
  }
}


//--------------------------------------------------------------------------------------------------------
//VALIDATE RADIO BUTTON
function isradio(field,message)
{
	var chosenradio = false;
	for (counterA = 0; counterA < field.length; counterA++)
	{
 		if (field[counterA].checked)
		 chosenradio = true;
 	}
 	if (!chosenradio)
 	{
		alert ("Please choose your "+message);
		field[0].focus();
 		return false;
 	}
 	else
	{
	return true;
	}

}


//--------------------------------------------------------------------------------------------------------
//VALIDATE TEXTAREA
function validtextarea(field,message)
{
	if (field.value.length < 1)
	{
		alert("Please fill in your "+message)
		field.focus();
		return false;
		
	}

return true;

}



//--------------------------------------------------------------------------------------------------------
//FUNCTION THAT PERFORMS ALL FUNCTIONS, DEFINED IN THE ONSUBMIT EVENT HANDLER
function check(feedback)


   
     
        
               
                {
                
                   if (isemp(document.feedback.Title,"Title"))
                   
                   {
                       if (isemp(document.feedback.Name,"Name"))
	                      
	                        {
	                         if (isemp(document.feedback.Email,"Email"))
	                           
	                           {
	                              if (isValidEmail(document.feedback.Email))
		 			                {
		 			                
		 			                  if (isemp(document.feedback.Subject,"Subject"))
	         
	                                     {
		 			                
		 			                  if (isemp(document.feedback.URL,"URL"))
	         
	                                                                {
	                                                                
	                                                                   if (validtextarea(document.feedback.Additional,"Your Message")) 
	                                                                     {
	                                                                     
	                                                                        return true;z
	                                                                     
	                                                                     }
	                                                                
																	}
	                                                        
	                                                        
	                                                        }
	                                               
	                                               
	                                               
	                                               }
	                                         
	                                         
	                                         }
										 }
	                                     
	                                     
	                                     }
	                                
	                                
	                           
                
            

   return false;

}