var min=10;
var max=17;
function changeFontSize(direction) {	
	var els1 = nodeListToArray(document.getElementById('contentleftlev2').getElementsByTagName('p'));
	var els2 = nodeListToArray(document.getElementById('contentleftlev2').getElementsByTagName('div'));
	var els3 = nodeListToArray(document.getElementById('contentleftlev2').getElementsByTagName('li'));
	var tmp = els1.concat(els2);
	var els = tmp.concat(els3);
	
	for(i=0;i<els.length;i++) {
	  if(els[i].style.fontSize) {
		 var s = parseInt(els[i].style.fontSize.replace("px",""));
	  } else {
		 var s = 12;
	  }
	  if (direction == 'increase')
	  {
		  if(s!=max) {
			 s += 1;
		  }
	  }
	  else
	  {
		  if(s!=min) {
			 s -= 1;
		  }
	  }
	  els[i].style.fontSize = s+"px"
	}
}



function nodeListToArray(nodeList)
{
	var ary = [];
	for(var i=0, len = nodeList.length; i < len; i++)
	{
		ary.push(nodeList[i]);
	}
	return ary;
}



function ajax_to_div(target_div,url) {
	
	thetargetdiv = target_div;
	
	if (window.XMLHttpRequest) {
        req = new XMLHttpRequest();
        req.onreadystatechange = ajax_to_div_processReqChange;
        req.open("GET", url, true);
        req.send(null);
    } else if (window.ActiveXObject) {
        isIE = true;
        req = new ActiveXObject("Microsoft.XMLHTTP");
        if (req) {
            req.onreadystatechange = ajax_to_div_processReqChange;
            req.open("GET", url, true);
            req.send();
        }
    }
}
function ajax_to_div_processReqChange() {
    // only if req shows "loaded"
    if (req.readyState == 4) {
        // only if "OK"
        if (req.status == 200) {
        	//alert(req.responseXML);
            items = req.responseXML.getElementsByTagName("htmloutput");
    		htmloutput = items[0].childNodes[0].nodeValue;
    		document.getElementById(thetargetdiv).innerHTML = htmloutput;
         } else {
         	return true;
         }
    }
}



function showHideDiv(myid) {
	if (document.getElementById(myid).style.display=='none')
	{
		document.getElementById(myid).style.display='block';
	}
	else
	{
		document.getElementById(myid).style.display='none';
	}
}