/*
    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 toggleFAQ(id){
	var faqList = getElementsByClassName(document, 'div', 'faq');
	var faqItemId;
	for (var i=0; i < faqList.length; i++){
		faqItemId = faqList[i].id;
		
		if (faqItemId == id){
			toggleFAQItem (faqItemId);
		}else {
			hideFAQ(faqItemId);	
		}
	}
}

function toggleFAQItem(id){
	var faqLink = document.getElementById(id+'_link');
	var faqAnswer = document.getElementById(id+'_answer');
	faqAnswer.style.display == 'none' || faqAnswer.style.display == '' ? showFAQ(id) : hideFAQ(id);
}

function hideFAQ(id){
	var faqLink = document.getElementById(id+'_link');
	var faqAnswer = document.getElementById(id+'_answer');
	
	faqAnswer.style.display = 'none';
	faqLink.className = 'faqLinkClosed';
}

function showFAQ(id){
	var faqLink = document.getElementById(id+'_link');
	var faqAnswer = document.getElementById(id+'_answer');
	
	faqAnswer.style.display = 'block';
	faqLink.className = 'faqLinkOpen';
}