function blurOn() {
	var blurpane = document.getElementById("blur");
	blurpane.style.height  = Math.max(document.body.scrollHeight, document.documentElement.scrollHeight)+"px"; // voor IE6, om de hele pagina te pakken.
	blurpane.style.display = "block";
	
}
function blurOff() {
	var blurpane = document.getElementById("blur");
	blurpane.style.display = "none";
}
function showDhtmlBlur() { 
	blurOn();
	document.getElementById("dhtml_blur").style.display = "block"; 
}
function hideDhtmlBlur() { 
	document.getElementById("dhtml_blur").style.display = "none"; 
	blurOff();
}