/**
 * Add events to have filled text fields
 */
function addFillEvents() {
	var input_fields = document.getElementsByTagName('INPUT');
	for (var i = 0; i < input_fields.length; i++) {
		if (input_fields[i].type == 'text' && input_fields[i].className == 'filled') {
			input_fields[i].original_value = input_fields[i].value;	//add a variable to store old value
			input_fields[i].onfocus = function () {
				if (this.original_value && this.original_value == this.value) {
					this.value = '';
				}
			}
			input_fields[i].onblur = function () {
				if (this.original_value && !this.value) {
					this.value = this.original_value;
				}
			}
		}
	}
}

add_onload( addFillEvents );