function Slider(index, maxHeight) {
	var iHeight = parseInt(document.getElementById("Element" + index).style.height)
	if (iHeight <= 1) {
		expand(index, maxHeight);
	} else {
		div(index);
	}
} 
function div(index) {
  var iHeight = parseInt(document.getElementById("Element" + index).style.height) - 1;
  if(iHeight>=1) {
   document.getElementById("Element" + index).style.height = iHeight + "px";
   window.setTimeout("div(" + index + ")",1);
  }
}
function expand(index, maxHeight) {
  var iHeight = parseInt(document.getElementById("Element" + index).style.height) + 1;
  if(iHeight<parseInt(maxHeight)) {
   document.getElementById("Element" + index).style.height = iHeight + "px";
   window.setTimeout("expand(" + index + "," + maxHeight + ")",1);
  }
}
function expandTreebyLoad(){
    var index = parseInt(getURLParam("n"));
    if(index > 0) {
        document.getElementById("Element" + index).style.height = getURLParam("h") + "px";
    }
}
function getURLParam(strParamName){
    var strReturn = "";
    var strHref = window.location.href;
    if ( strHref.indexOf("?") > -1 ){
        var strQueryString = strHref.substr(strHref.indexOf("?")).toLowerCase();
        var aQueryString = strQueryString.split("&");
        for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
            if (
                aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
                var aParam = aQueryString[iParam].split("=");
                strReturn = aParam[1];
                break;
            }
        }
    }
    return strReturn;
}