var dhtmlgoodies_slideSpeed = 10;	// Higher value = faster
var dhtmlgoodies_timer = 15;	// Lower value = faster

var objectIdToSlideDown = false;
var dhtmlgoodies_activeId = false;
var dhtmlgoodies_slideInProgress = false;
var srcBoxes;
var srcOnOff = new Array();


function showHideContent(e,inputId)
{
	if(dhtmlgoodies_slideInProgress)return;
	dhtmlgoodies_slideInProgress = true;
	if(!inputId)inputId = this.id;
	inputId = inputId + '';
	var numericId = inputId.replace(/[^0-9]/g,'');
	var answerDiv = document.getElementById('dhtmlgoodies_a' + numericId);
	
	
	objectIdToSlideDown = false;
	
	try{
		var iframeid = document.getElementById('box' + numericId);
		if(srcOnOff[numericId] != 'on' )
			{	
				iframeid.src = srcBoxes[numericId];
				srcOnOff[numericId] = "on"
			}
	}catch(ex){
	
	}
	
	if(!answerDiv.style.display || answerDiv.style.display=='none'){
    
		if(dhtmlgoodies_activeId &&  dhtmlgoodies_activeId!=numericId){	
				
			objectIdToSlideDown = numericId;
			slideContent(dhtmlgoodies_activeId,(dhtmlgoodies_slideSpeed*-1));
			
		}else{
				
			answerDiv.style.display='block';
			answerDiv.style.visibility = 'visible';
			
			slideContent(numericId,dhtmlgoodies_slideSpeed);
			
		}
		attivaImmagine(dhtmlgoodies_activeId, numericId);
	}else{
		slideContent(numericId,(dhtmlgoodies_slideSpeed*-1));
		dhtmlgoodies_activeId = false;
		attivaImmagine(numericId, numericId);
	}	
}

function slideContent(inputId,direction)
{
	var obj =document.getElementById('dhtmlgoodies_a' + inputId);
	var contentObj = document.getElementById('dhtmlgoodies_ac' + inputId);
	height = obj.clientHeight;
	height = height + direction;
	rerunFunction = true;
	if(height>contentObj.offsetHeight){
		height = contentObj.offsetHeight;
		rerunFunction = false;
	}
	if(height<=1){
		height = 1;
		rerunFunction = false;
	}

	obj.style.height = height + 'px';
	var topPos = height - contentObj.offsetHeight;
	if(topPos>0)topPos=0;
	contentObj.style.top = topPos + 'px';
	if(rerunFunction){
		setTimeout('slideContent(' + inputId + ',' + direction + ')',dhtmlgoodies_timer);
	}else{
		if(height<=1){
			obj.style.display='none'; 
			if(objectIdToSlideDown && objectIdToSlideDown!=inputId){
				document.getElementById('dhtmlgoodies_a' + objectIdToSlideDown).style.display='block';
				document.getElementById('dhtmlgoodies_a' + objectIdToSlideDown).style.visibility='visible';
				slideContent(objectIdToSlideDown,dhtmlgoodies_slideSpeed);				
			}else{
				dhtmlgoodies_slideInProgress = false;
			}
		}else{
			dhtmlgoodies_activeId = inputId;
			dhtmlgoodies_slideInProgress = false;
		}
	}
}

function attivaImmagine(idAttiva, idNonAttiva)
	{
	
	var fiancoAttiva, fiancoNonAttiva, img;
	
	if(idAttiva)
		if(idAttiva%2==0)
			fiancoAttiva = eval(idAttiva)-1;
		else
			fiancoAttiva = eval(idAttiva)+1;
	if(idNonAttiva%2==0)
		fiancoNonAttiva = eval(idNonAttiva)-1;
	else
		fiancoNonAttiva = eval(idNonAttiva)+1;
	if(idAttiva)
		{
		img = document.getElementById('img'+idAttiva);
		
		img.src = img.src.substr(0, img.src.length-7)+'.gif';
		img = document.getElementById('img'+fiancoAttiva);
		img.src = img.src.substr(0, img.src.length-7)+'.gif';
		}
	if(idAttiva!=idNonAttiva)
		{
		img = document.getElementById('img'+idNonAttiva);
		img.src = img.src.substr(0, img.src.length-4)+'_at.gif';
		img = document.getElementById('img'+fiancoNonAttiva);
		img.src = img.src.substr(0, img.src.length-4)+'_fi.gif';
		}
	}

function initShowHideDivs(ifSrc)
 
{
	var divs = document.getElementsByTagName('DIV');
	var divCounter = 1;
	srcBoxes = ifSrc;
	for(var no=0;no<divs.length;no++){
		if(divs[no].className=='dhtmlgoodies_question'){
			divs[no].onclick = showHideContent; 
			divs[no].id = 'dhtmlgoodies_q'+divCounter;
			
			var answer = divs[no].nextSibling.nextSibling;
			while(answer && answer.tagName!='DIV'){
				answer = answer.nextSibling;
				
 
			}
			answer.id = 'dhtmlgoodies_a'+divCounter;	
			contentDiv = answer.getElementsByTagName('DIV')[0];
			contentDiv.style.top = 0 - contentDiv.offsetHeight + 'px'; 	
			contentDiv.className='dhtmlgoodies_answer_content';
			contentDiv.id = 'dhtmlgoodies_ac' + divCounter;
			answer.style.display='none';
			answer.style.height='1px';
			divCounter++;
		}
		
		if(divs[no].className=='dhtmlgoodies_question_'){
			divs[no].onclick = showHideContent;
			divs[no].id = 'dhtmlgoodies_q'+divCounter;
			var answer = divs[no].nextSibling.nextSibling;
			while(answer && answer.tagName!='DIV'){
				answer = answer.nextSibling;
			}

			answer.id = 'dhtmlgoodies_a'+divCounter;	
			contentDiv = answer.getElementsByTagName('DIV')[0];
			contentDiv.style.top = 0 - contentDiv.offsetHeight + 'px'; 	
			contentDiv.className='dhtmlgoodies_answer_content';
			contentDiv.id = 'dhtmlgoodies_ac' + divCounter;
			answer.style.display='none';
			answer.style.height='1px';
			divCounter++;
		}	
		
				
	}	
	
}