function numbersonly(myfield, e, dec)
{
var key;
var keychar;

if (window.event)
   key = window.event.keyCode;
else if (e)
   key = e.which;
else
   return true;
keychar = String.fromCharCode(key);

// control keys
if ((key==null) || (key==0) || (key==8) || 
    (key==9) || (key==13) || (key==27) )
   return true;

// numbers
else if ((("0123456789").indexOf(keychar) > -1))
   return true;

// decimal point jump
else if (dec && (keychar == "."))
   {
   myfield.form.elements[dec].focus();
   return false;
   }
else
   return false;
}

function decnumbersonly(myfield, e)
{
var key;
var keychar;

if (window.event)
   key = window.event.keyCode;
else if (e)
   key = e.which;
else
   return true;
keychar = String.fromCharCode(key);

// control keys
if ((key==null) || (key==0) || (key==8) || 
    (key==9) || (key==13) || (key==27) )
   return true;

// numbers
else if ((("0123456789.,").indexOf(keychar) > -1))
   return true;

else
   return false;
}

function comma2point(pS){
	pS=pS.replace(/,/,'.');
	return pS;
}

function popup(mylink, windowname)
{
	if (! window.focus)return true;
	var href;
	if (typeof(mylink) == 'string') href=mylink;
	else href=mylink.href;
	window.open(href, windowname, 'top=20,left=40,width=650,height=430,scrollbars=no');
	return false;
}

function changeText(text)
{
if (document.getElementById('loginExpand').innerHTML=='-'+text)
	document.getElementById('loginExpand').innerHTML='+'+text
else
	document.getElementById('loginExpand').innerHTML='-'+text;
}