// JavaScript Document

//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 "+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(booking)

{
    if (isemp(document.booking.company,"Company Name"))
	   {
		   if (isemp(document.booking.contact,"Contact Person"))
		      {
				  if (isemp(document.booking.contactno,"Contact Number"))
				  
				    {
						if (isemp(document.booking.email,"Email"))
						
						{
							if (isValidEmail(document.booking.email))
		                       
							   {
		                           if (isemp(document.booking.daterequired," Expected Date for function")) 
								     
									   {
										 if (isemp(document.booking.time,"Expected Time for function")) 
										     
											 {
												if (isselect(document.booking.noon,"a.m or p.m")) 
												   
												   {
													    if (isemp(document.booking.hour,"Expected duration for function (hour)"))
														    
															{
															    
																 if (isemp(document.booking.purpose,"Purpose of function"))
																 
																      {
																		 if (isradio(document.booking.preferredseating,"Preferred Seating Arrangement"))
																		   {
																			 
																					

																			 return true;
																				
																		  }
							     
								 
																	  }
															}
								 
													}
								 
											 }
											 
									   }
					   
							  }
						}
					}
				  
			  }
	   }
   
   
   return false;

}