/******************************************************************************/ /* CLASS: Browser */ /* DESCRIPTION: "Sniffs" user browser name and version to populate */ /* cross-browser common characteristics, DOM switch variables */ /* and window manipulation methods. */ /* PROPERTIES: User browser identification */ /* majorVer - user browser major version (float) */ /* minorVer - user browser minor version (float) */ /* ns - Netscape user browser boolean */ /* ns4 - Netscape 4.04+ user browser boolean */ /* ie - Internet Explorer user browser boolean */ /* ie4 - Internet Explorer 4+ user browser boolean */ /* */ /* User browser client area */ /* NOTE: for IE4 these properties are valid when the document */ /* has been loaded, hence they are useful only when the */ /* object has been instantiated within an "onload" event */ /* of the tag; this implies that extending this */ /* class will set these properties invalid (i.e. -1) */ /* clientWidth - browser client width in pixels (int) */ /* clientHeight - browser client height in pixels (int) */ /* */ /* User browser DOM switch variables */ /* sDoc - document object reference (string) */ /* sHtm - inner HTML object reference (string) */ /* sSty - style object reference (string) */ /* METHODS: OpenWindow */ /* NOTE: NN4.04+, IE4+ Implementation (JavaScript 1.2) */ /******************************************************************************/ //////////////////////////////////////////////////////////////////////////////// // CONSTRUCTOR: Browser // // DESCRIPTION: Instantiates the browser object // //////////////////////////////////////////////////////////////////////////////// function Browser() { // Local variable var sBrowser = navigator.userAgent.toLowerCase(); // browser string // Object properties // browser type specifics: major and minor version // Netscape or Internet Explorer // versions NN4.04+ and IE4+ this.majorVer = parseInt(navigator.appVersion); this.minorVer = parseFloat(navigator.appVersion); this.ns = ((sBrowser.indexOf('mozilla') != -1) && (sBrowser.indexOf('spoofer')== -1) && (sBrowser.indexOf('compatible') == -1)); this.ns4 = (this.ns && (this.majorVer >= 4) && (this.minorVer > 4.04)); this.ie = sBrowser.indexOf("msie") != -1; this.ie4 = this.ie && (this.majorVer >= 4); // browser window client area: client width // client height this.clientWidth = this.ns ? innerWidth : (document.body ? document.body.clientWidth : -1); this.clientHeight = this.ns ? innerHeight : (document.body ? document.body.clientHeight : -1); // browser DOM references: document objects // style sheet objects // inner HTML objects this.sDoc = this.ns ? "document" : "document.all"; this.sSty = this.ns ? "" : ".style"; this.sHtm = this.ns ? ".document" : ""; // Object methods this.OpenWindow = OpenWindow; } //////////////////////////////////////////////////////////////////////////////// // METHOD: OpenWindow // // PARAMETERS: sURL - URL to display in bowser window (string) // // sName - name of the window (string) // // iLeft - x-position with respect to screen in pixels(int)// // iTop - y-position with respect to screen in pixels(int)// // iWidth - window width in pixels (int) // // iHeight - window height in pixels (int) // // sOptFtres - comma separated window optional features // // (string), which may be: // // toolbar - toolbar visibility // // location - location text field visibility // // directories - directory buttons visibility // // status - status bar visibility // // menubar - menubar visibility // // scrollbars - scrollbars visibility // // resizable - resize allowance // // e.g. "toolbar,menubar,status" // // RETURNS: Window object handler // // DESCRIPTION: Opens a browser window according to the dimensions and // // features specified in the above parameters. // //////////////////////////////////////////////////////////////////////////////// function OpenWindow(sURL, sName, iLeft, iTop, iWidth, iHeight, sOptFtres) { // Local variables var oWnd = null; var sWndFeatures = ""; // Form window position and dimensions string if set if(iLeft && iTop && iWidth && iHeight) { sWndFeatures = "left=" + iLeft + ",top=" + iTop + ",width=" + iWidth + ",height=" + iHeight; } // Trim any spaces found in the optional window features string sOptFtres = sOptFtres.replace(/\s*/g, ""); // Concatenate the optional features string if (sOptFtres) { if(sWndFeatures) { sWndFeatures += ","; } sWndFeatures += sOptFtres; } // Open the browser widnow as specified and give focus if (this.ns4 || this.ie4) { oWnd = window.open(sURL, sName, sWndFeatures); oWnd.focus(); } // Return the window object return (oWnd); }