function formerror(id) {
	field = document.getElementById(id)
	field.style.backgroundColor = 'red';
}


	function showbacklink() {
	target = document.getElementById('backlink_container')
	from = document.getElementById('link_backlink_id').options[document.getElementById('link_backlink_id').selectedIndex]
	if (from.value > 0) {
info = "<b>URL:</b> " + from.getAttribute('url')
info = info + "<br><b>Title:</b> " + unescape(from.getAttribute('anchor')) + "<br>"
info = info + "<b>Description:</b> " + unescape(from.getAttribute('describe')) + "<br>"
info = info + "<b>Preferred category:</b> "+ unescape(from.getAttribute('category'))
target.innerHTML = info
example = '<a href="' + from.getAttribute('url') + '">'
example = example + unescape(from.getAttribute('anchor')) + '</a><br>'
example = example + unescape(from.getAttribute('describe'))
document.getElementById('example').value = example
} else {
target.innerHTML = '<b>URL:</b><br><b>Title:</b><br><b>Description:</b><br><b>Preferred category:</b>'
document.getElementById('example').value = ''
}
	}

function doExpand(paraNum,arrowNum){
	//expand the paragraph and rotate the arrow; collapse and rotate it back
	if (paraNum.style.display=="none"){paraNum.style.display="";arrowNum.src="/furniture/nolines_minus.gif"}
	else{paraNum.style.display="none";arrowNum.src="/furniture/nolines_plus.gif"}

        	function showtooltip(fArg)
	{
		var tooltipOBJ = eval("document.all['tt" + fArg + "']");
		var tooltipOffsetTop = tooltipOBJ.scrollHeight + 35;
		var testTop = (document.body.scrollTop + event.clientY) - tooltipOffsetTop;
		var testLeft = event.clientX - 250;
		var tooltipAbsLft = (testLeft < 0) ? 10 : testLeft;
		var tooltipAbsTop = (testTop < document.body.scrollTop) ? document.body.scrollTop + 10 : testTop;
		tooltipOBJ.style.posLeft = tooltipAbsLft;
		tooltipOBJ.style.posTop = tooltipAbsTop;
		tooltipOBJ.style.visibility = "visible";
	}

	function hidetooltip(fArg)
	{
		var tooltipOBJ = eval("document.all['tt" + fArg + "']");
		tooltipOBJ.style.visibility = "hidden";
	}

}

function popup(url, windowWidth, windowHeight)
{

  popupHandle=null;
  var x=(screen.width-windowWidth)/2
  var y=(screen.height-windowHeight)/2
  var featureString = "toolbar=no,scrollbars=yes,resizable=no"
  featureString += ',left='+x + ',top='+y
  featureString += ',width='+windowWidth+',height='+windowHeight

  popupHandle = window.open( url,"popup",featureString)
  return popupHandle;

}

function mini (macagna) {
    window.open(macagna, '_blank', 'width=1,height=1,scrollbars=no,status=no');
}

		var expandedTriggerClass='triggerexpanded';
		var normalTriggerClass='triggernormal';
		var hoverTriggerClass='triggerhover';
		var normalElementClass='elementnormal';
		var collapsedElementClass='elementcollapsed';
		var collapsedElements=new Array();
		var triggerElements=new Array();
    	function domCollapse()
		{
			if(document.getElementById && document.createTextNode)
			{
				//parentElementId='collapsesection';
				//triggerelements='h2';
				var triggerClass=/trigger/;
	
				var elms,tohide,colobj,elementsToCheck,triggerelements,parentElementId;
				elementsToCheck=triggerelements?triggerelements:'*';
				if(parentElementId)
				{
					elms=document.getElementById('parentElementId').getElementsByTagName(elementsToCheck);
				} else {
					elms=document.getElementsByTagName(elementsToCheck);
				}
				for (i=0;i<elms.length;i++)
				{
					if(triggerClass.test(elms[i].className))
					{
						tohide=elms[i].nextSibling;
						while(tohide.nodeType!=1)
						{
							tohide=tohide.nextSibling;
						}
						collapsedElements.push(tohide)
						triggerElements.push(elms[i])
						juggleClass(tohide,normalElementClass,0);
						juggleClass(tohide,collapsedElementClass,1);
						elms[i].colobj=tohide;
						elms[i].onmouseover=function(){doTriggerHover(this);}
						elms[i].onmouseout=function(){juggleClass(this,hoverTriggerClass,0);}
						elms[i].onclick=function(){doDomCollapse(this,this.colobj);return false}
						elms[i].className=elms[i].className+' '+normalTriggerClass;
					}
				}
			}
		}
		function doTriggerHover(o)
		{
			if(!checkClass(hoverTriggerClass,o) && !checkClass(expandedTriggerClass,o))
			{
				juggleClass(o,hoverTriggerClass,1);
			}
		}
		function doDomCollapse(o,t)
		{
			if(t)
			{
				if(checkClass(collapsedElementClass,t))
				{
					juggleClass(t,collapsedElementClass,0);
					juggleClass(t,normalElementClass,1);
					juggleClass(o,normalTriggerClass,0);
					juggleClass(o,expandedTriggerClass,1);
				}else{
					juggleClass(t,normalElementClass,0);
					juggleClass(t,collapsedElementClass,1);
					juggleClass(o,expandedTriggerClass,0);
					juggleClass(o,normalTriggerClass,1);
				}
			}
		}
		function doDomCollapseAll(state){
			var i,o,t;
			for(i=0;i<collapsedElements.length;i++){
				t=collapsedElements[i];	
				o=triggerElements[i];	
				if(state==1){
					juggleClass(t,collapsedElementClass,0);
					juggleClass(t,normalElementClass,1);
					juggleClass(o,normalTriggerClass,0);
					juggleClass(o,expandedTriggerClass,1);
				} else {
					juggleClass(t,normalElementClass,0);
					juggleClass(t,collapsedElementClass,1);
					juggleClass(o,expandedTriggerClass,0);
					juggleClass(o,normalTriggerClass,1);
				}
			}
		}
		function juggleClass(o,c,s)
		{
			if(s==0) 
			{
				o.className=o.className.replace(c,'');	
			}
			if (s==1 && !checkClass(c,o))
			{
				o.className+=' '+c
			}
		}
		function checkClass(c,o)
		{
			var re=new RegExp('\\b'+c+'\\b');
			return re.test(o.className);
		}

		window.onload=domCollapse;