var _____WB$wombat$assign$function_____=function(name){return (self._wb_wombat && self._wb_wombat.local_init && self._wb_wombat.local_init(name))||self[name];};if(!self.__WB_pmw){self.__WB_pmw=function(obj){this.__WB_source=obj;return this;}}{ let window = _____WB$wombat$assign$function_____("window"); let self = _____WB$wombat$assign$function_____("self"); let document = _____WB$wombat$assign$function_____("document"); let location = _____WB$wombat$assign$function_____("location"); let top = _____WB$wombat$assign$function_____("top"); let parent = _____WB$wombat$assign$function_____("parent"); let frames = _____WB$wombat$assign$function_____("frames"); let opens = _____WB$wombat$assign$function_____("opens"); // EPA's core functions // 05 June 2007 // For comments and explanations, see http://www.epa.gov/epafiles/js/epa-full.txt function printAsIs_Date_URL() { if(!document.getElementById('footer')) return; var footer = document.getElementById('footer'); var printText = document.createElement('p'); printText.id = 'printAsIs'; var print_function = document.createElement('a'); print_function.href = '#'; print_function.title = 'Print this page as-is.'; print_function.onclick = function(){ print_preview(); return false; }; print_function.appendChild(document.createTextNode('Print As-Is') ); printText.appendChild(print_function); footer.appendChild(printText); var urlText = document.createElement('p'); urlText.id = 'url'; urlText.appendChild(document.createTextNode(window.location.href)); footer.insertBefore(urlText,printText); var x = new Date(document.lastModified); var Modif = new Date(x.toGMTString()); var days = ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday']; var months = ['January','February','March','April','May','June','July','August','September','October','November','December']; var datetowrite = 'Last updated on ' + days[Modif.getDay()] + ', ' + months[Modif.getMonth()] + ' ' + Modif.getDate() + nths(Modif.getDate()) + ', ' + takeYear(Modif) + '.'; var dateText = document.createElement('p'); dateText.id = 'date'; dateText.appendChild(document.createTextNode(datetowrite)); footer.insertBefore(dateText, urlText); } function print_preview() { var links = document.getElementsByTagName('link'); for (var i = 0; i < links.length; i++) { var linkHREF = links[i].getAttribute('href'); if (linkHREF == 'https://web.archive.org/web/20080312172102/http://www.epa.gov/epafiles/s/print.css') { links[i].removeAttribute('href'); links[i].href = 'https://web.archive.org/web/20080312172102/http://www.epa.gov/epafiles/s/epa.css'; } } add_preview_message(); } function add_preview_message() { var footer = document.getElementById('footer'); var printPara = document.createElement('p'); printPara.innerHTML = 'This document will now print as it appears on screen when you use the File » Print command.
Use View » Refresh to return to original state.'; footer.appendChild(printPara); } function newIcon() { if(!document.getElementsByTagName('ins')) return; var newItem = document.getElementById('content').getElementsByTagName('ins'); for ( var i = 0; i < newItem.length; i++) { if (!newItem[i].getAttribute('datetime')) continue; var a = newItem[i].getAttribute('datetime'); var b = new Array(); b = a.split('-'); var postedDate = (Date.UTC(b[0],b[1],b[2],0,0,0))/86400000; var x = new Date(); var today = new Date(x.toGMTString()); var now = (Date.UTC(takeYear(today),today.getMonth(),today.getDate(),0,0,0))/86400000; var timeLeft = postedDate - (now + 1); if (timeLeft < 31 && timeLeft > 0) { var icon = document.createElement('img'); icon.alt = 'New!'; icon.src = 'https://web.archive.org/web/20080312172102/http://www.epa.gov/epafiles/images/new-en.gif'; icon.width = '34'; icon.height = '16'; newItem[i].appendChild(icon); } } } function takeYear(theDate) { var x = theDate.getYear(); var y = x % 100; y += (y < 38) ? 2000 : 1900; return y; } function nths(day) { if (day == 1 || day == 21 || day == 31) return 'st'; if (day == 2 || day == 22) return 'nd'; if (day == 3 || day == 23) return 'rd'; return 'th'; } function notice() { var script = document.createElement('script'); script.type = 'text/javascript'; script.src = 'https://web.archive.org/web/20080312172102/http://www.epa.gov/epahome/notice.js'; document.getElementsByTagName('head')[0].appendChild(script); } function addClass(element,name) { if (!element.className) { element.className = name; } else { element.className+= ' '; element.className+= name; } } function stripeTables() { if (!document.getElementsByTagName('table')) return; var tables = document.getElementsByTagName('table'); for (var i = 0; i