form_validate = function()
{
	valid = true;
	
	var oForm = document.forms["content_form"];
	
	var business_name 		= oForm.business_name.value;
	var address_line_1 		= oForm.address_line_1.value;
	var address_line_2 		= oForm.address_line_2.value;
	var town 				= oForm.town.value;
	var telephone 			= oForm.telephone.value;
	var mobile 				= oForm.mobile.value;
	var email_listing 		= oForm.email_listing.value;
	var description 		= oForm.description.value;	
	var chks 				= document.getElementsByName('languages[]');
	var tlcs 				= oForm.tlcs.value;	
	var subcategories 		= oForm.subcategories.value;
	var user_file 			= oForm.user_file.value;
	var name	 			= oForm.name.value;	
	var username	 		= oForm.username.value;	
	var password	 		= oForm.password.value;
	var confirm_password	= oForm.confirm_password.value;
	var id			 		= oForm.id.value;
	var email_user			= oForm.email_user.value;

	var alertMsg = "<h1>Errors were found, please correct them and try again</h1><ul>\n";
	
	var l_Msg = alertMsg.length;
	
	if (business_name == '')
	{
		alertMsg += "<li>Please enter a business name</li>\n";
		valid = false;
	}
	
	if(business_name.length > 36)
	{
		alertMsg += "<li>Business name must be 36 characters or less</li>";
		valid = false;
	}	
	
	if (email_listing != '')
	{
		var re = /^[^\s()<>@,;:\/]+@\w[\w\.-]+\.[a-z]{2,}$/i
		var email_test = re.test(email_listing)
		if (email_test != true)
		{
			alertMsg += "<li>Please enter a valid LISTING e-mail address</li>\n";
			valid = false;
		}
	}	
	
	if ( ((address_line_1 == '') && (address_line_2 == '')) && (telephone == '') && (mobile == '') && (email_listing == ''))
	{
		alertMsg += "<li>Please enter either a physical address, telephone N&ordm;, mobile N&ordm; or an e-mail address</li>\n";
		valid = false;
	}
	
	if((telephone != '') && (mobile != ''))
	{
		if(telephone == mobile)
		{
			alertMsg += "<li>Please do not enter the same telephone/mobile number twice</li>\n";
			valid = false;			
		}
	}
	
	if ( ((address_line_1 != '') || (address_line_2 != '')) && (town == '') )
	{
		alertMsg += "<li>Please enter a town or city when entering an address</li>\n";
		valid = false;		
	}
	
	if (description == '')
	{
		alertMsg += "<li>Description is a required field</li>\n";
		valid = false;
	}
	
	var hasChecked = false;	
	
	for (var i = 0; i < chks.length; i++)
	{
		if (chks[i].checked)
		{
			hasChecked = true;
			break;
		}
	}
	
	if (!hasChecked)
	{
		alertMsg += "<li>Please select at least one language</li>\n";
		valid = false;
	}	

	if (tlcs == '')
	{
		alertMsg += "<li>Please select a category</li>\n";
		valid = false;
	}

	if (subcategories == '')
	{
		alertMsg += "<li>Please select a sub category</li>\n";
		valid = false;
	}
	
	if(user_file != '')
	{
		var re = /\.(gif|jpg|jpeg)$/i
		var user_file_test = re.test(user_file)
		if(user_file_test != true)
		{
			alertMsg += "<li>Only JPG, JPEG and GIF files may be uploaded</li>\n";
			valid = false;			
		}
	}
	
	if (name == '')
	{
		alertMsg += "<li>Your name is a required field</li>\n";
		valid = false;
	}
	
	if (username == '')
	{
		alertMsg += "<li>Username is a required field</li>\n";
		valid = false;
	}
	
	if (username != '')
	{
		if(username.length < 6)
		{
			alertMsg += "<li>Username must be 6 characters or more</li>";
			valid = false;
		}

		if(username.length > 20)
		{
			alertMsg += "<li>Username must be 20 characters or less</li>";
			valid = false;
		}
		
		/*var re = /^([a-zA-Z0-9_-]+)$/
		var username_test = re.test(username)
		if(username_test != true)
		{
			alertMsg += "<li>Username must be alphanumeric (a-z, A-Z or _)</li>\n";
			valid = false;			
		}*/		
	}
	

	if (id == '') /* then this is a new listing */
	{
		if(password == '')
		{
			alertMsg += "<li>Password is a required field</li>";
			valid = false;			
		}
		
		if(password != '')
		{
			if(password.length < 6)
			{
				alertMsg += "<li>Password must be 6 characters or more</li>";
				valid = false;
			}
	
			if(password.length > 20)
			{
				alertMsg += "<li>Password must be 20 characters or less</li>";
				valid = false;
			}
			
			if(confirm_password == '')
			{
				alertMsg += "<li>Confirmation password is a required field</li>";
				valid = false;				
			}
			
			if(confirm_password != '')
			{
				if(confirm_password != password)
				{
					alertMsg += "<li>Your confirmation password does not match</li>";
					valid = false;				
				}
			}			
		}
	}
	
	if ((id != '') && (password != '')) /* then this is an update listing who wants to update their password*/
	{
		if(password.length < 6)
		{
			alertMsg += "<li>Password must be 6 characters or more</li>";
			valid = false;
		}

		if(password.length > 20)
		{
			alertMsg += "<li>Password must be 20 characters or less</li>";
			valid = false;
		}
		
		if(confirm_password == '')
		{
			alertMsg += "<li>Confirmation password is a required field</li>";
			valid = false;				
		}
		
		if(confirm_password != '')
		{
			if(confirm_password != password)
			{
				alertMsg += "<li>Your confirmation password does not match</li>";
				valid = false;				
			}
		}			
	}
	
	if (email_user == '')
	{
		alertMsg += "<li>Please enter an ACCOUNT e-mail address</li>\n";
		valid = false;
	}	
	
	if (email_user != '')
	{
		var re = /^[^\s()<>@,;:\/]+@\w[\w\.-]+\.[a-z]{2,}$/i
		var email_test = re.test(email_user)
		if (email_test != true)
		{
			alertMsg += "<li>Please enter a valid ACCOUNT e-mail address</li>\n";
			valid = false;
		}
	}

	if(typeof oForm.tos != 'undefined')
	{
		var tos					= oForm.tos.checked;	
		if (!tos)
		{
			alertMsg += "<li>Your must agree to our terms of service to add a listing</li>\n";
			valid = false;
		}
	}
	
	if (id == '') /* then this is a new listing */
	{		
		if(typeof oForm.image_code != 'undefined')
		{		
			var image_code			= oForm.image_code.value;
			if (image_code == '')
			{
				alertMsg += "<li>Please enter the access code shown above the submit button</li>\n";
				valid = false;
			}
		}
	}
	
	if (alertMsg.length == l_Msg)
	{
		submitonce(oForm);
		if(user_file != '')
		{
			showProgressWindow('image_show_progress.php',300,75);
		}
		return true;	
	}
	else 
	{
		document.getElementById('stop').style.display = "none";
		document.getElementById('errors').style.padding = "1em";
		document.getElementById('errors').innerHTML = alertMsg + "</ul>"
		/*alert(alertMsg);*/
		window.scrollTo(0,0);		
		return false;
	}
		return valid;
}


// Confirm delete required
function confirm_delete(val) 
{
	if (val == 'delete')
	{
		if(window.confirm("Are you sure you want to FULLY DELETE this listing?") != true)
		{
			document.getElementById('delete_listing').selectedIndex = 0;
		}
		else
		{
			alert('Click the Submit button to FULLY DELETE this property');
		}
	}
}