//feedback.js 

//alert("feedback.js");
//Browsercheck (needed) ***************
function lib_bwcheck(){ 
  this.ver=navigator.appVersion
  this.agent=navigator.userAgent
  this.dom=document.getElementById?1:0
  this.opera5=this.agent.indexOf("Opera 5")>-1
  this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0; 
  this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
  this.ie7=(this.ver.indexOf("MSIE 7")>-1 && this.dom && !this.opera5)?1:0;
  this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
  this.ie=this.ie4||this.ie5||this.ie6
  this.mac=this.agent.indexOf("Mac")>-1
  this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0; 
  this.ns4=(document.layers && !this.dom)?1:0;
  this.bw=(this.ie6||this.ie5||this.ie4||this.ns4||this.ns6||this.opera5||this.ie7)
  return this;
}
bw=new lib_bwcheck(); //Browsercheck object


function getElement(elem) {
   var ret = null;
	if(bw.ns4) ret=document.layers[elem]
  	else if(bw.ie4) ret=document.all[elem]
	else if(document.getElementById) 
	{ ret = document.getElementById(elem);}
	return ret;
}
function getElementByName(elem) {
	var arr = getElementsByName(elem);
	if (arr !=null && arr.length  == 1)
		return arr[0];
	else
		return null;
}
function getFormElementsByName(name) 
	{
		var retArr = new Array();
		var inx = 0;
		for (var i = 0; i < document.forms[0].length; i++)
		{
			if (document.forms[0][i].name == name) 
			{
				retArr[retArr.length] = document.forms[0][i];
			}	

		}
		return retArr;
	}
	
function hideElement(elem, hide) {
	var eid = getElement(elem);
	if (eid !=null) 
		eid.style.display=(hide)?"none":"block";
	return true;
}
function systemOrNot(inp) {
	var hide = true;
	if (inp.value == "system" && inp.checked)
		hide=false;
	else if (inp.value != "system" && !inp.checked)
		hide=false;
	hideElement("brief", hide);
	return true;
}

function checkRadio()
{
	var sOns = document.forms[0].questionOrComment;
	if (typeof(sOns) != "undefined") {
		for (var i=0; i < sOns.length; i++)
		{
			if (sOns[i].checked && sOns[i].value=="system")
				hideElement("brief", false);
		}
	}
	else { hideElement("brief", false);} // always unhide brief if staff
}