//mouse out button style
function tcmMouseOut(el) {
	regex = /button_up/gi;
	cl = el.className;
	cl = cl.replace(regex,"button");
	el.className = cl;
}
//mouse over button style
function tcmMouseOver(el) {
	regex = /button/gi;
	cl = el.className;
	cl = cl.replace(regex,"button_up");
	el.className = cl;
}
// Wysylanie formularza przy pomocy Enter'a w polu tekstowym
function checkEnter(event,form){
	// <input type=text onKeyPress="checkEnter(event)">
	var keyCode = (event.which) ? event.which : event.keyCode;
	if( keyCode == 13) form.submit();
}