calendario javascript

[joshenema]

muy buenas, a ver si alguien me puede ayudar:
Tengo este codigo para un calendario. Lo que quiero conseguir es que cuando pulse el boton del calendario, me muestre automaticamente el dia actual, ya que si se escribe por ejemplo cualquier numero suelto, muestra el año 1900. Le he dado mil vueltas pero no consigue arreglarlo.

Lo corto en 2 trozos, ya que no me cabe en el post.

Espero me podais ayudar

Gracias

Código:

	var fc_ie = false;
	if (document.all) { fc_ie = true; }
	
	var calendars = Array();
	var fc_months = Array('Ene', 'Feb', 'Mar', 'Abr', 'May', 'Jun', 'Jul', 'Ago', 'Sep', 'Oct', 'Nov', 'Dic');
	var fc_openCal;

	var fc_calCount = 0;
	
	function getCalendar(fieldId) {
		return calendars[fieldId];
	}
	
	function displayCalendarFor(fieldId) {
		var formElement = fc_getObj(fieldId);
		displayCalendar(formElement);
	}
	
	function displayCalendar(formElement) {
		if (!formElement.id) {
			formElement.id = fc_calCount++;
		} 
		var cal = calendars[formElement.id];
		if (typeof(cal) == 'undefined') {
			cal = new floobleCalendar();
			cal.setElement(formElement);
			calendars[formElement.id] = cal;
		}
		if (cal.shown) {
			cal.hide();
		} else {
			cal.show();
		}
	}
	
	function display3FieldCalendar(de, me, ye) {
		if (!de.id) { de.id = fc_calCount++; }
		if (!me.id) { me.id = fc_calCount++; }
		if (!ye.id) { ye.id = fc_calCount++; }
		var id = de.id + '-' + me.id + '-' + ye.id;
		var cal = calendars[id];
		if (typeof(cal) == 'undefined') {
			cal = new floobleCalendar();
			cal.setElements(de, me, ye);
			calendars[id] = cal;
		}
		if (cal.shown) {
			cal.hide();
		} else {
			cal.show();
		}
	}

	//--Class Stuff--------------------------------------------------
	function floobleCalendar() {
		// Define Methods
		this.setElement = fc_setElement;
		this.setElements = fc_setElements;
		this.parseDate = fc_parseDate;
		this.generateHTML = fc_generateHTML;
		this.show = fc_show;
		this.hide = fc_hide;
		this.moveMonth = fc_moveMonth;
		this.setDate = fc_setDate;
		this.formatDate = fc_formatDate;
		this.setDateFields = fc_setDateFields;
		this.parseDateFields = fc_parseDateFields;
		
		this.shown = false;
	}
	
	function fc_setElement(formElement) {
		this.element = formElement;
		this.format = this.element.title;
		this.value = this.element.value;
		this.id = this.element.id;
		this.mode = 1;
	}
	
	function fc_setElements(monthElement, dayElement, yearElement) {
		
		this.dElement = dayElement;
		this.mElement = monthElement;
		this.yElement = yearElement;
		this.id = this.dElement.id + '-' + this.mElement.id + '-' + this.yElement.id;
		this.element = this.mElement;
		if (fc_absoluteOffsetLeft(this.dElement) < fc_absoluteOffsetLeft(this.element)) {
			this.element = this.dElement;
		}
		if (fc_absoluteOffsetLeft(this.yElement) < fc_absoluteOffsetLeft(this.element)) {
			this.element = this.yElement;
		}
		if (fc_absoluteOffsetTop(this.dElement) > fc_absoluteOffsetTop(this.element)) {
			this.element = this.dElement;
		}
		if (fc_absoluteOffsetTop(this.mElement) > fc_absoluteOffsetTop(this.element)) {
			this.element = this.mElement;
		}
		if (fc_absoluteOffsetTop(this.yElement) > fc_absoluteOffsetTop(this.element)) {
			this.element = this.yElement;
		}

		this.mode = 2;
	}
	
	function fc_parseDate() {
		if (this.element.value) {
			this.date = new Date();
			var out = '';
			var token = '';
			var lastCh, ch;
			var start = 0;
			lastCh = this.format.substring(0, 1);
			for (i = 0; i < this.format.length; i++) {
				ch = this.format.substring(i, i+1);
				if (ch == lastCh) { 
					token += ch;
				} else {
					fc_parseToken(this.date, token, this.element.value, start);
					start += token.length;
					token = ch;
				}
				lastCh = ch;
			}
			fc_parseToken(this.date, token, this.element.value, start);
		} else {
			this.date = new Date();
		}
		if ('' + this.date.getMonth() == 'NaN') {
			this.date = new Date();
		}
	}	
	
	function fc_parseDateFields() {
		this.date = new Date();
		if (this.dElement.value) this.date.setDate(fc_getFieldValue(this.dElement));
		if (this.mElement.value) this.date.setMonth(fc_getFieldValue(this.mElement) - 1);
		if (this.yElement.value) this.date.setFullYear(fc_getFieldValue(this.yElement));
		if ('' + this.date.getMonth() == 'NaN') {
			this.date = new Date();
		}
	}
	
	function fc_setDate(d, m, y) {
		this.date.setYear(y);
		this.date.setMonth(m);
		this.date.setDate(d);
		if (this.mode == 1) {
			this.element.value = this.formatDate();
		} else {
			this.setDateFields();
		}
		this.hide();
	}
	
	function fc_setDateFields() {
		fc_setFieldValue(this.dElement, fc_zeroPad(this.date.getDate()));
		fc_setFieldValue(this.mElement, fc_zeroPad(this.date.getMonth() + 1));
		fc_setFieldValue(this.yElement, this.date.getFullYear());
	}
	
	function fc_formatDate() {
		var out = '';
		var token = '';
		var lastCh, ch;
		lastCh = this.format.substring(0, 1);
		for (i = 0; i < this.format.length; i++) {
			ch = this.format.substring(i, i+1);
			if (ch == lastCh) { 
				token += ch;
			} else {
				out += fc_formatToken(this.date, token);
				token = ch;
			}
			lastCh = ch;
		}
		out += fc_formatToken(this.date, token);
		return out;
	}
	
	function fc_show() {
		if (typeof(fc_openCal) != 'undefined') { fc_openCal.hide(); }
	
		if (this.mode == 1) {
			this.parseDate();
		} else {
			this.parseDateFields();
		}
		this.showDate = new Date(this.date.getTime());
		if (typeof(this.div) != 'undefined') {
			this.div.innerHTML = this.generateHTML();
		}
		
		if (typeof(this.div) == 'undefined') {
			this.div = document.createElement('DIV');
			this.div.style.position = 'absolute';
			this.div.style.display = 'none';
			this.div.className = 'fc_main';
			this.div.innerHTML = this.generateHTML();
			this.div.style.left = fc_absoluteOffsetLeft(this.element);
			this.div.style.top = fc_absoluteOffsetTop(this.element) + this.element.offsetHeight + 1;
			document.body.appendChild(this.div);
		}
		this.div.style.display = 'block';
		this.shown = true;
		fc_openCal = this;
	}
	
	function fc_generateHTML() {
		var html = '<TABLE><TR><TD CLASS="fc_head" COLSPAN="6"><DIV STYLE="float: right"></DIV><font face="Arial"><B>CALENDARIO</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<img border="0" src="file:///E:/WEBS/Web%20apaolaza/Autobusesapaolaza.com%2012-11-09/img/logo_cal.png" width="13" height="13" align="bottom"></TD><TD CLASS="fc_date" onMouseover="this.className = \'fc_dateHover\';" onMouseout="this.className=\'fc_date\';" onClick="getCalendar(\'' + this.id + '\').hide();"><B>X</B></TD></TR>';
		html += '<TR><TD CLASS="fc_date" onMouseover="this.className = \'fc_dateHover\';" onMouseout="this.className=\'fc_date\';" onClick="getCalendar(\'' + this.id + '\').moveMonth(-12);"><B><<</B></TD><TD CLASS="fc_date" onMouseover="this.className = \'fc_dateHover\';" onMouseout="this.className=\'fc_date\';" onClick="getCalendar(\'' + this.id + '\').moveMonth(-1);"><B><</B></TD><TD COLSPAN="3" CLASS="fc_wk"><b>' + fc_months[this.showDate.getMonth()] + ' ' + fc_getYear(this.showDate) + '</b></TD><TD CLASS="fc_date" onMouseover="this.className = \'fc_dateHover\';" onMouseout="this.className=\'fc_date\';" onClick="getCalendar(\'' + this.id + '\').moveMonth(1);"><B>></B></TD><TD CLASS="fc_date" onMouseover="this.className = \'fc_dateHover\';" onMouseout="this.className=\'fc_date\';" onClick="getCalendar(\'' + this.id + '\').moveMonth(12);"><B>>></B></TD></TR>';
		html += '<TR><TD WIDTH="14%" CLASS="fc_wk">Lu</TD><TD WIDTH="14%" CLASS="fc_wk">Ma</TD><TD WIDTH="14%" CLASS="fc_wk">Mi</TD><TD WIDTH="14%" CLASS="fc_wk">Ju</TD><TD WIDTH="14%" CLASS="fc_wk">Vi</TD><TD class="fc_wknd" WIDTH="14%">Sa</TD><TD class="fc_wknd" WIDTH="14%">Do</TD></TR>';