/////////////////////////////////////////////////////////////////////////////// /// /// External Functions Called from Flash SWF /// /// Last modified: 8/13/09 /// /////////////////////////////////////////////////////////////////////////////// // Modify as needed for a given implementation var CALC_NAME = "LessWeb"; // To enable in html page, be sure to add the onresize="" and onscroll="" handlers to // the tag. /** * Registers handlers for browser window resize and scrolling * * Disabled - IE not handling addEventListeners properly. Adding on body element directly instead. **/ //window.addEventListener("resize", browserWindowChangeHandler, false); //window.addEventListener("scroll", browserWindowChangeHandler, false); /** * Returns the Y center of the browser window. Called externally from the Flash SWF. **/ function getYCenter() { var h = 0; // Non-IE browsers if (typeof( window.innerHeight ) == 'number') h = window.innerHeight //IE 6+ in 'standards compliant mode' else if ( document.documentElement && document.documentElement.clientHeight ) h = document.documentElement.clientHeight // Legacy IE else if ( document.body && document.body.clientHeight ) h = document.body.clientHeight; return ( document.all ? document.body.scrollTop : window.pageYOffset ) + (h/2); } /** * Returns the adjusted bottom Y position of the browser - called using ExternalInterface **/ function getBrowserBottomPos() { var windowHeight = window.innerHeight ? window.innerHeight : document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body.clientHeight; var scrollYPos = getScrollY(); return windowHeight+scrollYPos; } /** * Returns the scrolling y offset - used by getBrowserBottomPos() **/ function getScrollY() { var scrOfY = 0; if( typeof( window.pageYOffset ) == 'number' ) { //Netscape compliant scrOfY = window.pageYOffset; } else if ( document.body && document.body.scrollTop ) { //DOM compliant scrOfY = document.body.scrollTop; } else if ( document.documentElement && document.documentElement.scrollTop ) { //IE6 standards compliant mode scrOfY = document.documentElement.scrollTop; } return scrOfY; } /** * Returns the y position of the SWF file. Called externally from the Flash SWF. **/ function findPosY(obj) { var curtop = 0; if(obj.offsetParent) while(1) { curtop += obj.offsetTop; if(!obj.offsetParent) break; obj = obj.offsetParent; } else if(obj.y) curtop += obj.y; return curtop; } /** * Adjusts the height of the Flash SWF at runtime. Called externally from the Flash SWF. **/ function setFlashHeight(newHeight) { var viewportwidth; var viewportheight; // the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight if (typeof window.innerWidth != 'undefined') { viewportwidth = window.innerWidth; viewportheight = window.innerHeight; } // IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document) else if (typeof document.documentElement != 'undefined' && typeof document.documentElement.clientWidth != 'undefined' && document.documentElement.clientWidth != 0) { viewportwidth = document.documentElement.clientWidth; viewportheight = document.documentElement.clientHeight; } // older versions of IE else { viewportwidth = document.getElementsByTagName('body')[0].clientWidth; viewportheight = document.getElementsByTagName('body')[0].clientHeight; } if (newHeight == "100%") document.getElementById(CALC_NAME).style.height = newHeight else document.getElementById(CALC_NAME).style.height = (viewportheight > newHeight) ? viewportheight + 'px' : newHeight + 'px'; } /** * Handler for any event that impacts the y position of the browser. Calls AS3 method. **/ function browserWindowChangeHandler() { var yPos = getBrowserBottomPos(); flashMovieInstance(CALC_NAME).windowYChanged(yPos); } /** * Handler for any event that impacts the y position of the browser. Calls AS3 method. **/ function flashMovieInstance(movieName) { // IE if (navigator.appName.indexOf("Microsoft") != -1) { return window[movieName]; } // Non-IE else { return document[movieName]; } }