function updateDropDown ( target, data ) {

	

	target.options.length = 1; // Erase all but the first option

	

	if ( (typeof(data) == "object") ) {

		

		for ( itemId in data ) {

			

			target.options[target.options.length] = new Option(data[itemId], itemId);

			

		} // for institutionId

		

	} // if

	

} // updateDropDown()





function submitComparisonForm ( action ) {

	

	var comparisonForm = document.getElementById("comparisonForm");

	comparisonForm.submitAction.value = action;

	

	if ( checkComparisonForm() ) {

		

		comparisonForm.submit();

		

	} // if

	

} // submitComparisonForm()



function checkComparisonForm (  ) {

	

	var comparisonForm = document.getElementById("comparisonForm");

	var selectedResults = document.getElementById("selectedChosen");

	

	switch ( comparisonForm.submitAction.value ) {

		

		case "search":

			

			if ( comparisonForm.query.value.length < 4 ) {

				

				alert(COMPARE_FORM_TOO_SHORT_QUERY);

				return false;

				

			} // if

			

		break; // case search

			

		case "add":

			

			if ( selectedResults.options.length == 2 ) {

				

				alert(COMPARE_FORM_TOO_MANY_ITEMS);

				return false;

				

			} // if

			

		break; // case search

		

	} // switch

	

	return true;

	

} // checkComparisonForm()



function compareDrugs ( tableUrl ) {

	

	var selectedResults = document.getElementById("selectedChosen");

	

	if ( selectedResults.options.length == 2 ) {

		

		var results = selectedResults.options;

		

		top.location.href = tableUrl + "&drug[a]=" + results[0].value + "&drug[b]=" + results[1].value;

		

	} else {

		

		alert(COMPARE_FORM_NOT_ENOUGH_ITEMS);

		

	} // else

	

} // compareDrugs()



function checkDrugsInteraction ( reportUrl ) {

	

	var selectedResults = document.getElementById("selectedChosen");

	

	if ( selectedResults.options.length == 2 ) {

		

		var results = selectedResults.options;

		

		top.location.href = reportUrl + "&interactor_id[a]=" + results[0].value + "&interactor_id[b]=" + results[1].value;

		

	} else {

		

		alert(COMPARE_FORM_NOT_ENOUGH_ITEMS);

		

	} // else

	

} // checkDrugsInteraction()