// Display remaining input characters
// fieldId: text input (usually textarea)
// counterId: html tag that displays remaining characters
// maxlimit: max # allowed characters
function textCounter(fieldId, counterId, maxlimit) {
	
	var textObj		= document.getElementById( fieldId );
	var countObj	= document.getElementById( counterId );
	
	// trim string if too long
	if ( textObj.value.length > maxlimit )
		textObj.value = textObj.value.substring( 0, maxlimit );
	else
		countObj.innerHTML = maxlimit - textObj.value.length;

}