function fncShowHide(vId){
	document.getElementById(vId).style.display=(document.getElementById(vId).style.display=="none"?"block":"none");
}
function fncVisNoVis(vId){
	document.getElementById(vId).style.visibility=(document.getElementById(vId).style.visibility=="hidden"?"visible":"hidden");
}
function checkNr(value,idForm){
	if ( isNaN(parseInt(value)) ){
		idForm.value = "";
	}
	else{
		idForm.value =  parseInt(value);
	}
}