/**
 * Checks/unchecks all tables
 *
 * @param   string   the form name
 * @param   boolean  whether to check or to uncheck the element
 *
 * @return  boolean  always true
 */
function setCheckboxes(the_form, do_check)
{
	var elts  = document.forms[the_form].getElementsByTagName('input');
    var elts_cnt  = elts.length;

    for ( i = 0; i < elts_cnt; i++)
    {
        elts[i].checked = do_check;
		if ( elts[i].type == "submit" )
			elts[i].disabled = !do_check;
    }
}

function UpdateSubmit(the_form) {
	var elts  = document.forms[the_form].getElementsByTagName('input');
	var elts_cnt  = elts.length;
	var bChecked = false;

	for ( i = 0; i < elts_cnt; i++) {
		if (elts[i].type == "checkbox" && elts[i].checked == true) {
			bChecked = true;
		}
		if ( elts[i].type == "submit" ) {
			elts[i].disabled = true;
		}
	}
	for ( i = 0; i < elts_cnt; i++) {
		if ( elts[i].type == "submit" ) {
			if (bChecked == true) {
				elts[i].disabled = false;
			} else {
				elts[i].disabled = true;
			}
		}
	}
}

function setCheckbox(the_form)
{
    var elts      = document.forms[the_form].getElementsByTagName('input');
    var elts_cnt  = elts.length;

    var allUnchecked = true;

    for (var i = 0; i < elts_cnt; i++)
        if(elts[i].checked)
			allUnchecked = false;

    for (var i = 0; i < elts_cnt; i++)
        if( elts[i].type == "submit" )
			elts[i].disabled = allUnchecked;
}


function charCounter(field,maxLength,countTarget)
{

	field = document.getElementById(field);
	countTarget = document.getElementById(countTarget);
	var inputLength=field.value.length;

	if(inputLength >= maxLength)
	{
		field.value=field.value.substring(0,maxLength);

	}
	countTarget.innerHTML=maxLength-field.value.length;
}


function docOpen(text)
{
	newWindow=window.open('','','toolbar=no,resizable=yes,scrollbars=yes,width=400,height=300');
	newWindow.document.open("text/html");
	newWindow.document.write(unescape(text));
	newWindow.document.close();
}


function addBookmark( title, url )
{
	if (title == undefined)
		title = document.title;

	if (url == undefined)
		url = top.location.href;
		
	if (window.sidebar) // firefox
		window.sidebar.addPanel(title, url, '');
	else if(window.opera && window.print) // opera
	{
		var elem = document.createElement('a');
		elem.setAttribute('href',url);
		elem.setAttribute('title',title);
		elem.setAttribute('rel','sidebar');
		elem.click();
	} 
	else if(document.all) // ie
		window.external.AddFavorite(url, title);
	else if (navigator.appName=="Netscape") //Netscape
		alert( 'To bookmark this site press "Ctrl+D".' );
	else
		alert( 'Your browser doesn\'t support this feature' );
}


function emailCheck( str )
{

 if (str.search( /^[a-z0-9_\-]+(\.[_a-z0-9\-]+)*@([_a-z0-9\-]+\.)+([a-z]{2}|aero|arpa|biz|com|coop|edu|gov|info|int|jobs|mil|museum|name|nato|net|org|pro|travel)$/i ) == -1 )
 	return false;
 else
 	return true;
}

function validate_required(field,alerttxt)
{
with (field)
  {
  if (value==null||value=="")
    {
    alert(alerttxt);return false;
    }
  else
    {
    return true;
    }
  }
}

function getCookie(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=");
  if (c_start!=-1)
    {
    c_start=c_start + c_name.length+1;
    c_end=document.cookie.indexOf(";",c_start);
    if (c_end==-1) c_end=document.cookie.length;
    return unescape(document.cookie.substring(c_start,c_end));
    }
  }
return "";
}