/***********************************************
* Drop down menu w/ description- © Dynamic Drive (www.dynamicdrive.com)
* This notice must stay intact for use
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

//1) CUSTOMIZE TEXT DESCRIPTIONS FOR LINKS ABOVE
var thetext1=new Array()
thetext1[0]="“…every child and school employee should have the right to an environmentally safe and healthy school that is clean and in good repair.“… -- American Public Health Association"
thetext1[1]="The largest number of cleanrooms is divided between the semi-conductor industry, driven by increased yield (or decreased cull rates), and the pharmaceutical/ medical device industry driven by health-related concerns of not causing death or illness to the public along with FDA regulatory concerns. In this article, Mr. Brande presents his views on what the absolute minimum testing criteria should be for a cleanroom to be “certified."
thetext1[2]="When someone mentions a “controlled environment” most people think of a cleanroom or operating room. In actuality, there are 15 general categories of controlled environments1 and many subcategories under these."
thetext1[3]="Important Aspects of Particulate Filters, Particulate Filter Test Standards, Local Codes & Requirements and Application Summary"
thetext1[4]="BUILDINGS PURSUING GREEN-BUILDING MILESTONES, such as LEED certification, need to evaluate many things relating to energy efficiency and indoor environmental quality. But are they missing some not-so-obvious strategies?"
thetext1[5]="We have long known that providing good air filtration in a building has many benefits, from providing a healthier environment to protecting equipment and fixtures. In January 2003, ASHRAE released the “Report of Presidential Ad Hoc Committee for Building Health and Safety under Extraordinary Incidents.” "
thetext1[6]="This ASHRAE Standard 52.2 User Guide was created by the National Air Filtration Association (NAFA), a group of over 200 air filter distributers, manufacturers and engineers. "
thetext1[7]="When to Change your Air Filter... When it is loaded with dust, of course. But, unfortunately, there is more to the story than this simple statement. First, a short lesson on media air filters. All filters, be they commercial or residential battle the same three forces of nature...resistance to flow (*see below), amount of dust they will hold, and efficiency or ability to remove particles from the air. Just when you have a filter with high efficiency, it won't hold much dirt or the resistance to flow is too high. Conversely, when you get low resistance to flow, it usually won't be very efficient. "
thetext1[8]="This guide is intended to help employers and employees assess the health risks associated with ventilation systems in their workplace. Such assessments can be no more than an examination of what, in the course of work, could possibly cause harm to people. With the help of this guide, you may identify hazards, the degree of risk and the possible solutions. "
thetext1[9]="This paper describes the results of studies conducted to investigate the actual in-use performance of electret and non-electret pleated HVAC filters when exposed to a variety of commercial and industrial as well as residential environments in which they must operate. Field studies were condusted in installations using 100% outdoor air, 100% indoor air, and a mixture of recirculated (indoor) and makeup (outdoor) air. Results were compared with the filter performance described by ASHRAE 52.2 characterization. "
thetext1[10]="Approximately 20 percent of the U.S. population— nearly 55 million people—spend their days inside elementary and secondary schools. In 1999, indoor air quality (IAQ) was reported to be unsatisfactory in about one in five public schools in the United States, while ventilation was reported as unsatisfactory in about one-quarter of public schools, according to the National Center for Education Statistics of the Department of Education. The health of students and staff in these schools is a cause for great concern, particularly the negative effects of poor IAQ on asthma and other respiratory illnesses."
thetext1[11]="Effective air filtration provides the primary defense for building occupants and HVAC equipment against pollutants generated within a building as well as pollutants from air drawn into a building from the HVAC system. That’s"
thetext1[12]="When mold grows in school buildings and portable classrooms, some staff and students, particularly those with allergies or respiratory problems, may report adverse health effects. Mold requires oxygen, water, and a source of food to grow. There are molds that can grow on almost anything including: wood, paper, carpet, foods, and insulation. Controlling moisture is the key to managing mold in schools."
thetext1[13]="“9/11” CHANGED THE WORLD. The early reactions to the events surrounding and following 9/11 were similar to the “Chicken Little” of nursery rhyme folklore fame. As with “The sky is falling!” shouts of “Shut off the Air Conditioning System!” spread panic and concern among the building community. Conferences were held by every conceivable group related to the building industry; legislation was proposed at all levels; a new Homeland Security Agency was created; a national alert system was developed; and duct-tape sales surged. Further fuel came from the SARS pandemic that demonstrated how far and how fast a communicable disease can and will spread in our modern world. Out of this frenzy, Filtration and Air Cleaning (FAC) was recognized as an existing technology that could be the potential “Silver Bullet” for occupant safety. This article is excerpted from a presentation by the author at the 2003 NAFA Annual Conference. It is designed to assist the air filtration professional to aid their clients --the building management team—regarding the application of FAC for the control of airborne chemical/biological radiological, (CBR) threats in their existing building."
/// You may define additional text arrays if you have multiple drop downs:
var thetext2=new Array()
thetext2[0]=""
thetext2[1]=""
thetext2[2]=""
thetext2[3]=""
 
// Now, see 2) below for final customization step

function displaydesc(which, descriptionarray, container){
if (document.getElementById)
document.getElementById(container).innerHTML=descriptionarray[which.selectedIndex]
}

function jumptolink(what){
var selectedopt=what.options[what.selectedIndex]
if (document.getElementById && selectedopt.getAttribute("target")=="newwin")
window.open(selectedopt.value)
else
window.location=selectedopt.value
}

//2) Call function displaydesc() for each drop down menu you have on the page
//   This function displays the initial description for the selected menu item
//   displaydesc(name of select menu, name of corresponding text array, ID of SPAN container tag):
//   Important: Remove the calls not in use (ie: 2nd line below if there's only 1 menu on your page)

displaydesc(document.form1.select1, thetext1, 'textcontainer1')
displaydesc(document.form2.select2, thetext2, 'textcontainer2')