/* author: Be! Interactive */
/* Creation date: 10/12/2003 */

isNS4 = (document.layers) ? 1 : 0;
isIE4 = (document.all) ? 1 : 0;
isW3C = (document.getElementById && !document.all) ? 1 : 0;

function getCalculatedProperty(objName, property) {

    // ***** W3C Compatible DOM (NN6, Mozilla 16, etc.) *****

    if (isW3C) {
        docObj = document.getElementById(objName);
		
        if (property == "visibility") {
	    cssp = docObj.style.visibility;
	    return (cssp == "") ? "inherit" : cssp;
	}

	if (property == "clip") {
	    cssp = docObj.style.clip;

	    if (cssp == "") {
		cssStr = "rect(0px "; 
		cssStr += getCalculatedProperty(objName, "width") + " ";
		cssStr += getCalculatedProperty(objName, "height") + " ";
		cssStr += "0px)";
		return cssStr;
	    }
	    return cssp;
	}

	if (property == "zIndex") {
	    cssp = docObj.style.zIndex;
	    return (cssp == "") ? "inherit" : cssp;
	}

	cssp = document.defaultView.getComputedStyle(docObj, "").getPropertyValue(property);

	return (cssp == "") ? "unknown" : cssp;
    }

    // ***** Netscape Navigator 4+ DOM *****

    if (isNS4) {
	docObj = document.layers[objName];

	if (property == "visibility") {
	    cssp = docObj.visibility;
	    return (cssp == "hide") ? "hidden" : (cssp == "show") ? "visible" : "inherit";
	}

	if (property == "clip") {
	    cssStr = "rect(" + docObj.clip.top + "px ";
	    cssStr += docObj.clip.right + "px ";
	    cssStr += docObj.clip.bottom + "px ";
	    cssStr += docObj.clip.left + "px)";
	    return cssStr;
	}

	if ((property == "width") || (property == "height")) {
	    return eval("docObj.clip." + property) + "px";
	}

	if (property == "top") property = "pageY";
	if (property == "left") property = "pageX";

	cssp = eval("docObj." + property);

	if (property != "zIndex") cssp += "px";

	return cssp;
    }

    // ***** Internet Explorer 4+ DOM *****

    if (isIE4) {
	if (property == "width") return eval(objName + ".offsetWidth") + "px";

	if (property == "height") return eval(objName + ".offsetHeight") + "px";

	if (property == "clip") {
	    cssp = eval(objName + ".style.clip");

	    if (cssp == "") {
		cssStr = "rect(0px ";
		cssStr += getCalculatedProperty(objName, "width") + " ";
		cssStr += getCalculatedProperty(objName, "height") + " ";
		cssStr += "0px)";
		return cssStr;
	    }
	    return cssp;
	}

	if (property == "top") return eval(objName + ".offsetTop") + 'px';

	if (property == "left") return eval(objName + ".offsetLeft") + 'px';

        // Else, use 'currentStyle' to find the rest

	return eval(objName + ".currentStyle." + property);
    }
}

function toggleVisibility(id, NNtype, IEtype, WC3type) {
    if (document.getElementById) {
		eval("document.getElementById(id).style.visibility = \"" + WC3type + "\"");
    } else {
        if (document.layers) {
            document.layers[id].visibility = NNtype;
	        alert (document.layers[id].clip.height);
        } else {
            if (document.all) {
                eval("document.all." + id + ".style.visibility = \"" + IEtype + "\"");
            }
        }
    }
}