gridObject = document.getElementById('grille');
gridDateMarker = document.getElementById('gridDateMarker');
if (gridObject != null && gridDateMarker != null) {
	gridObject.scrollTop = parseInt(gridDateMarker.offsetTop)
			- parseInt(gridObject.offsetTop);
}

function validateSearchParameters() {
	channelSelection = document.getElementById('channelSelection');
	typeSelection = document.getElementById('typeSelection');
	daySelection = document.getElementById('daySelection');
	hourSelection = document.getElementById('hourSelection');
	titreRechercheErreur = document.getElementById('titreRechercheErreur');
	keyword = document.getElementById('keyword');
	
	var nbCriteria = (channelSelection.value != -1) + (typeSelection.value != -1) +
	(daySelection.value != -1) + (hourSelection.value != -1);
	
	if (nbCriteria < 2 && keyword.value == "") {
		titreRechercheErreur.innerHTML = "Veuillez affiner votre recherche";
		return false;
	}
	return true;
}