/*
	getElementsByClassName()
	Written by Jonathan Snook, http://www.snook.ca/jonathan
	Add-ons by Robert Nyman, http://www.robertnyman.com
*/

function getElementsByClassName(oElm, strTagName, strClassName){
	var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = new Array();
	strClassName = strClassName.replace(/-/g, "\-");
	var oRegExp = new RegExp("(^|\s)" + strClassName + "(\s|$)");
	var oElement;
	for(var i=0; i<arrElements.length; i++){
		oElement = arrElements[i];
		if(oRegExp.test(oElement.className)){
			arrReturnElements.push(oElement);
		}
	}
	return (arrReturnElements)
}

function show_description(){
	var description = getElementsByClassName(this.parentNode, 'div', 'description');
	description[0].style.display = 'block';
	/* ugly hack, requires prototype coz I'm lazy */
	Position.clone(this, description[0]);
	description[0].style.top = (parseInt(description[0].style.top) + 20) + 'px';
	description[0].style.width = '207px';
	description[0].style.height = 'auto';
}

function hide_description(){
	var description = getElementsByClassName(this.parentNode, 'div', 'description');
	description[0].style.display = 'none';
}

var description_ids = ['subject','location_name','recommendation_subject','location_name2'];

function show_descriptions_page_load(){
  for(var i = 0; i < description_ids.length; i++){
    document.getElementById(description_ids[i]).onfocus = show_description;
    document.getElementById(description_ids[i]).onblur = hide_description;
    EventManager.addEventListener(document.getElementById(description_ids[i]), 'change',hide_description);
    document.getElementById(description_ids[i]).onkeydown = hide_description;
  }
}

//EventManager.addEventListener(window, 'load', show_descriptions_page_load);