rem: } else if (evt.altKey) { 
add: } else if (evt.altKey && this.mode !="measure") { 
context:     defaultMouseDown: function (evt) {        this.mouseDragStart = evt.xy.copyOf();        if (evt.shiftKey) {            this.switchModeTo("zoombox");        } else if (evt.altKey) {            this.switchModeTo("measure");        }        switch (this.mode) {            case "zoombox":                this.map.div.style.cursor = "crosshair";                this.zoomBox = OpenLayers.Util.createDiv('zoomBox',                                                         this.mouseDragStart,                                                         null,                                                         null,                                                         "absolute",                                                         "2px solid red");                this.zoomBox.style.backgroundColor = "white";                this.zoomBox.style.filter = "alpha(opacity=50)"; // IE                this.zoomBox.style.opacity = "0.50";                this.zoomBox.style.zIndex = this.map.Z_INDEX_BASE["Popup"] - 1;                this.map.viewPortDiv.appendChild(this.zoomBox);                break;            case "measure":                break;            default:                this.map.div.style.cursor = "move";                break;        }        Event.stop(evt);    },
meta: 8310	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8310/5b8c48d8ede9910b42f905788f6974877e0ac77a/MouseToolbar.js/clean/lib/OpenLayers/Control/MouseToolbar.js