function testLandingPage(varname){
var url = window.location.href;
var qparts = url.split("?");
if (qparts.length<=1) return false;
var vars = qparts[1].split("&");
for (i=0;i<vars.length;i++){
  var parts = vars[i].split("=");
  if (parts[0] == varname) return true;
  } 
return false;
}

function setFrameHeight(){
if (window.frameElement) window.frameElement.loaded=true;
	else {
		var introframe = document.getElementsByTagName('iframe');
		var framecontent;
		if (introframe[0].contentDocument) framecontent = introframe[0].contentDocument; else if (introframe[0].contentWindow) framecontent=introframe[0].contentWindow.document;
		var frameheight = framecontent.getElementById('page_setup').offsetHeight;
		introframe[0].style.height = frameheight+'px';
		}
}

function setGrassHeight(){
if (window.frameElement) window.frameElement.loaded=true;
	else {
	var intro = document.getElementById('intro');
	intro.removeChild(intro.firstChild);//delate the word introduction!
	var page = document.getElementById('page_setup');
	var grass = document.getElementById('grass');
	var imgs = grass.getElementsByTagName('img');
	var newStem,grass;
	while(grass.offsetHeight < page.offsetHeight-400){
		newStem = document.createElement("img");
		newStem.setAttribute('src',imgs[1].src);
		grass.appendChild(newStem);
		space = document.createElement('<br>');
		grass.insertBefore(space);
		}
	}
}