function go(msg,hvalue){
  if(msg=="") return false;
  else {
    document.mainform.msg.value=msg;
    document.mainform.hvalue.value=hvalue;
    document.mainform.submit();
  }
}
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);
	if ((key==null) || (key==0) || (key==8) || (key==9) || (key==13) || (key==27) ) return true;
	else if ((("0123456789").indexOf(keychar) > -1)) return true;
	else if (dec && (keychar == ".")){
	  myfield.form.elements[dec].focus();
	  return false;
	}
	else return false;
}

function check(exp,str) {
  if (exp !="" && str!="") {
    if (str.match(exp)) {return true;}
    else {return false;}
  }
  return false;
}

function check(exp,str) {
  if (exp !="" && str!="") {
    if (str.match(exp)) {return true;}
    else {return false;}
  }
  return false;
}
//...............................................................................................
function getFotoWin(url,xx,yy) 
{ 
	calendarWindow = window.open('foto_show.php?url='+url, '','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=auto,resizable=1,dependent=no,width='+xx+',height='+yy+'');
}
//...............................................................................................


function ch(){
  document.mainform.change.value="true";

}