function text2image() {
	var eleArr = document.getElementsByTagName("h1");
	// achterstevoren aflopen omdat we het element verwijderen 
	// en de arrayinhoud dynamisch wordt aangepast 
	for(var i = eleArr.length - 1; i > 0; i--) {
		var ele = eleArr[i];
		if(ele.className == "text2image") {
			var text = ele.innerHTML;
			var width = ele.getAttribute('w');
			var height = ele.getAttribute('h');
			var param = ele.getAttribute('param');
			var src = "text2image.php?text="+text+"&width="+width+"&height="+height+"&"+param;
	
			var img = document.createElement("img");
			img.setAttribute('src', src);
			img.setAttribute('width', width);
			img.setAttribute('height', height);
			img.setAttribute('alt', text);

			var parent = ele.parentNode;
			parent.insertBefore(img, ele.nextSibling);
			parent.removeChild(ele);
		}
	}
}

if(window.addEventListener) {
	window.addEventListener("load", text2image, false);
} else {
	window.attachEvent('onload', text2image);
}