Very basic form validation for jQeury, only useful if you do not want to use wbshims to pollyfill older browsers and simply nee to validate if a field has a value.

form_validation.js

	//Basic custom form validation
	$('#formSave').on('click', function() {		
		$('input[data-required="true"]').each(function(){
			if($(this).val() === '') {
				$(this).addClass('required').val('This field is required');
			}
		});
		
		if (cfarray.length === 0) {
			$('#selectedResults').addClass('required').text('This field is required')
		}
		
		$('select[data-required="true"]').each(function(){
			if($(this).val() === '') {
				$(this).addClass('required').append('<option class="required" selected>This field is required</option>');
			}
		});
		
		if( $('.required').length === 0 ) {
			valid = true;
		}
		
		if (valid === true) {
			$('form').trigger('submit');
		} else {
			return false;
		}
					
	});
	
	//Clear form validation properties
	$('input').on('focus', function(){
		if($(this).val() == 'This field is required') {
			$(this).removeClass('required').val('');
		}	
	});
	
	$('#addCustomer').on('focus', function(){
		if (cfarray.length === 0) {
			$('#selectedResults').removeClass('required').text('');
		}
	});

	$('select').on('click', function(){
		$(this).removeClass('required');
	});
	
	$('select').on('change', function(){
		$(this).find('option.required').remove();
	});

form_validation_alt.js

	//Basic custom form validation
	$('#formSave').on('click', function() {		
		$('[data-required="true"]').each(function(){
			if($(this).val() == '') {
				$(this).addClass('required');
				$(this).parent('td').addClass('required');
			}
		});
		
		if( $('.required').length == 0 ) {
			valid = true;
		}
		
		if (valid == true) {
			$('form').trigger('submit');
		} else {
			return false;
		}
					
	});
	
	//Clear form validation properties
	$('input').on('focus', function(){
		if($(this).hasClass('required')) {
			$(this).removeClass('required');
			$(this).parent('td').removeClass('required');
		}	
	});
	
	$('#addCustomer').on('focus', function(){
		if (cfarray.length == 0) {
			$('#selectedResults').removeClass('required');
		}
	});

	$('select').on('click', function(){
		$(this).removeClass('required');
	});