function wyslij()
{
	if(!check_email())
		return;
	df	=	document.getElementById('form_kontaktowy');
	df.submit();
}

/* clearElementValue(this,"e-mail")*/
function clearElVal(dfi,val)	{	if(dfi.value==val)	dfi.value	=	"";	}
function resetElVal(dfi,val)	{	if(dfi.value=="")	dfi.value	=	val;}

function clearElVal2(dfi,val)	{	if(dfi.innerHTML==val)	dfi.innerHTML	=	"";	}
function resetElVal2(dfi,val)	{	if(dfi.innerHTML=="")	dfi.innerHTML	=	val;}

function isNumberKey(evt)
      {
         var charCode = (evt.which) ? evt.which : event.keyCode
         if (charCode > 31 && (charCode < 48 || charCode > 57))
            return false;

         return true;
      }