function limitText(field, limitCount) {
	var limitNum = $('#numChar').val();
	var limitField = document.getElementById(field);
	var alphaExp = /^[a-zA-Z1234567890 \u00C4\u00D6\u00DC\.\-@]+$/;
	if(!limitField.value.match(alphaExp)){
		$("#lpText").after('<div id="textAlert">Character Not Available</div>');
		$('#textAlert').fadeOut(2000, function() {$('#textAlert').remove();} );
		
		limitField.value = limitField.value.substring(0, limitField.value.length - 1);
	}
	if (limitField.value.length > limitNum) {
		limitField.value = limitField.value.substring(0, limitNum);
		if(limitField.value.length > limitNum) {
			$('#inputWrapper').css("background-color", "#ff0000");
		}
	} else {
		document.getElementById(limitCount).innerHTML = limitNum - limitField.value.length;
		$('#inputWrapper').css("background-color", "#2A70AE");
	}
	limitField.value = limitField.value.toUpperCase();
}

function addSpecialCharacter(text, field, limitCount, limitNum) {
	document.getElementById(field).value += text;
	document.getElementById(field).focus();

	limitText(field, limitCount, limitNum);	
	jQuery.plateBuilder.drawLetters();	
}

function swapImg () {
	$('#plate-bg').css("background-image", "url({plateImg})");
}

function textFocus () {
	if($('#plateText').val() == 'YOUR TEXT') {
		$('#plateText').val('');
		jQuery.plateBuilder.drawLetters();
	}
}