//Querystring functions

function Querystring() {
  // get the query string, ignore the ? at the front
  var querystring=location.search.substring(1,location.search.length);

  // parse out name/value pairs separated via &
  var args = querystring.split("&");

  // split out each name = value pair
  for (var i=0;i<args.length;i++)	{
    var pair = args[i].split("=");

    // Fix broken unescaping
    temp = unescape(pair[0]).split("+");
    temp0 = temp.join(" ");
		
    temp = unescape(pair[1]).split("+");
    temp1 = temp.join(" ");
		
    this[temp0]=temp1;
  }
  this.get=Querystring_get;
}

function Querystring_get(strKey,strDefault) {
  var value=this[strKey];
  if (value==null){
    value=strDefault;
  }
  return value;
}


function accordianOpen(sBodyID){
	//alert(document.getElementById("body"+sBodyID).className);
	if(document.getElementById("body"+sBodyID).className == "accordian_body"){
		//document.getElementById("body"+sBodyID).style.display = "none";
		//document.getElementById("ddown"+sBodyID).src = "../images/active_dropdown.gif";
		document.getElementById("body"+sBodyID).className = "accordian_body_hide";
		document.getElementById("ddown"+sBodyID).src = "../images/active_dropdown.gif";
	}
	else{
		//document.getElementById("body"+sBodyID).style.display = "block";
		//document.getElementById("ddown"+sBodyID).src = "../images/inactive_dropdown.gif";
		document.getElementById("body"+sBodyID).className = "accordian_body";
		document.getElementById("ddown"+sBodyID).src = "../images/inactive_dropdown.gif";
		
		i=1;
		while(document.getElementById("body"+i) != null || document.getElementById("body"+i) != undefined){
			if(i!=sBodyID){
			//alert(i);
				//document.getElementById("body"+i).style.display = "none";
				//document.getElementById("ddown"+i).src = "../images/active_dropdown.gif";
				document.getElementById("body"+i).className = "accordian_body_hide";
				document.getElementById("ddown"+i).src = "../images/active_dropdown.gif";
			}
			i++;
		}
	}
}

function answerToggle(sBodyID){
	if(document.getElementById("body"+sBodyID).className == "accordian_body"){
		document.getElementById("body"+sBodyID).className = "accordian_body_hide";
	}
	else{
		document.getElementById("body"+sBodyID).className = "accordian_body";
	}
}

function getMaterial(oForm){
	
	var url = document.getElementById(oForm).selectItem[document.getElementById(oForm).selectItem.selectedIndex].value;
	if(url!="none"){
		MM_openBrWindow(url,'popup1','scrollbars=yes,resizable=yes');
	}
	
}

function showElement(id){
	var element = document.getElementById(id);
	element.style.display = 'block';
	}
	
function hideElement(id){
	var element = document.getElementById(id);
	element.style.display = 'none';
	}
	
function makeVisible(id){
	var element = document.getElementById(id);
	element.style.visibility = 'visible';
	}