rem: if(window.innerHeight) return window.innerHeight; if(typeof window.document.documentElement.clientHeight=="number") return window.document.documentElement.clientHeight; return window.document.body.clientHeight; 
add: if(window.innerHeight) return window.innerHeight; if(typeof window.document.documentElement.clientHeight=="number") return window.document.documentElement.clientHeight; return window.document.body.clientHeight; 
context: function getViewportHeight() {if(window.innerHeight)return window.innerHeight;if(typeof window.document.documentElement.clientHeight=="number")return window.document.documentElement.clientHeight;return window.document.body.clientHeight;}
meta: 1064	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1064/a955c322e9f35d1e6e0a183d4b3058214f72aa3f/viewport.js/buggy/tiki/lib/tabs/viewport.js