[piople]

Ну собсно, спасиб за идею, сделал сам. Кому интересно:

var browser = new Browser();
var dragObj = new Object();
window.onload = Browser;

function draw() {
  	    document.getElementById('ddlShadow').innerHTML = "";

		displace_x=3;
  		displace_y=3;
				
		shadowWidth=document.getElementById('TTT').offsetWidth;
		shadowHeight=document.getElementById('TTT').offsetHeight;
				
		document.getElementById('ddlShadow').innerHTML += "<div id='shadow_total' style='position:absolute; left:0px; top:0px; width:"+shadowWidth+"px; height:"+shadowHeight+"px; background:#000000'>&nbsp;</div>"		
		if ((browser.isNS)||(window.opera)) {
			document.getElementById("shadow_total").style.opacity = 0.2;
		}
		if (browser.isIE){
			document.getElementById("shadow_total").style.filter = "progid:DXImageTransform.Microsoft.Alpha(Opacity=20)";
		}
	}

function Browser() {
  	var ua, s, i;
  	this.isIE    = false;
  	this.isNS    = false;
  	this.version = null;
  	ua = navigator.userAgent;
  	s = "MSIE";
  	if ((i = ua.indexOf(s)) >= 0) {
    	this.isIE = true;
    	this.version = parseFloat(ua.substr(i + s.length));
    	return;
  	}
  	s = "Netscape6/";
  	if ((i = ua.indexOf(s)) >= 0) {
    	this.isNS = true;
    	this.version = parseFloat(ua.substr(i + s.length));
    	return;
  	}
 	 s = "Gecko";
  	if ((i = ua.indexOf(s)) >= 0) {
    	this.isNS = true;
    	this.version = 6.1;
    	return;
  	}
  	if(window.opera){this.isIE = true;}
}

Спс, удачи