csscheckcalled=0;
	cssOn=true;
	
	try {
  		document.execCommand('BackgroundImageCache', false, true);
	} catch(e) {}
	
	function csscheck() {
		if (csscheckcalled==0) {
			csscheckcalled=1;
			//if (document.getElementById("cssTest").offsetLeft < 30) cssOn=false;
		}
	}
		
	function changeBackground(which,what) {
		csscheck();
		if (cssOn) {
			if (what == 'back')
			which.className="divNormal";
			else
			which.className="divHi";
		}
	}
		
	function changeHeight(what) {
		csscheck();
		if (cssOn) {
			if (what != 'back') {
				document.getElementById('dynNavi').style.height = 204 + "px";
				}
				else {
				document.getElementById('dynNavi').style.height = 24 + "px";
			}
		}
	}
	
	function init() {
		csscheck();
		if (cssOn) {
			document.getElementById('dynNavi').style.height = 24 + "px";
		}
	}