function SearchValidation(input)
	{
	    var requiredFields = new Array('searchword','eat_type','porties','calories_from','calories_to','hour_form','min_from','hour_to','min_to','difficulty');

	    var fieldNames = new Array("Zoek woord");

	    var fieldCheck   = true;
	    var fieldsNeeded = "\nDe volgende velden zijn verplicht:\n\n\t";


	    for(var fieldNum=0; fieldNum < requiredFields.length; fieldNum++) {
	        if ((input.elements[requiredFields[fieldNum]].value != "" && input.elements[requiredFields[fieldNum]].value != 0)) {
				return true;
	        }
	    }

		alert(fieldsNeeded+fieldNames[0]);
		return false;

		
	}