function isDate(dateStr,field) {

var datePat = /^(\d{4})(\/|-)(\d{1,2})(\/|-)(\d{1,2})$/;
var matchArray = dateStr.match(datePat); // is the format ok?

if (matchArray == null) {
alert('Please enter '+field+'date as yyyy-mm-dd.');
return false;
}

year = matchArray[1]; // p@rse date into variables
month = matchArray[3];
day = matchArray[5];

if (month < 1 || month > 12) { // check month range
alert("Month must be between 1 and 12.");
return false;
}

if (day < 1 || day > 31) {
alert("Day must be between 1 and 31.");
return false;
}

if ((month==4 || month==6 || month==9 || month==11) && day==31) {
alert("Month "+month+" doesn`t have 31 days!")
return false;
}

if (month == 2) { // check for february 29th
var isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
if (day > 29 || (day==29 && !isleap)) {
alert("February " + year + " doesn`t have " + day + " days!");
return false;
}
}
return true; // date is valid
}// Copyright 2006-2007 javascript-array.com

var timeout	= 500;
var closetimer	= 0;
var ddmenuitem	= 0;

// open hidden layer
function mopen(id)
{	
	// cancel close timer
	mcancelclosetime();

	// close old layer
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';

}
// close showed layer
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

// go close timer
function mclosetime()
{
	closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

// close layer when click-out
document.onclick = mclose;              

// Place your application-specific JavaScript functions and classes here
// This file is automatically included by javascript_include_tag :defaults
function check_agreed(oForm,message) {
	if (oForm.terms_agreed.checked)
	{
		return true;
	}
	else
	{
		alert(message)
		return false;
	}
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}
function show_date_as_local_time() {
    var spans = document.getElementsByTagName('span');
    for (var i=0; i<spans.length; i++)
        if (spans[i].className.match(/\bLOCAL_TIME\b/i)) {
            system_date = new Date(Date.parse(spans[i].innerHTML));
            if (system_date.getHours() >= 12) { adds = '&nbsp;PM'; h = system_date.getHours() - 12; } 
            else { adds = '&nbsp;AM'; h = system_date.getHours(); }
            spans[i].innerHTML = h + ":" + (system_date.getMinutes()+"").replace(/\b(\d)\b/g, '0$1') + adds;    
        }
}