STEM, Research and Writing Resources for Journalists
// test function when the user scrolls down 20px from the top of the document, show the button
window.onscroll = function() {scrollFunction()};
function scrollFunction() {
if (document.body.scrollTop > 20 || document.documentElement.scrollTop > 20) {
document.getElementById("myBtn").style.display = "block";
} else {
document.getElementById("myBtn").style.display = "none";
}
}
// test function When the user clicks on the button, scroll to the top of the document
function topFunction() {
document.body.scrollTop = 0; // For Safari
document.documentElement.scrollTop = 0; // For Chrome, Firefox, IE and Opera
}
/***********************************************
* Flex Level Drop Down Menu- (c) Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for this script and 100s more
***********************************************/
function openwin(url,theWidth,theHeight)
{
var theTop=(screen.height/2)-(theHeight/2);
var theLeft=(screen.width/2)-(theWidth/2);
var features='height='+theHeight+',width='+theWidth+',top='+theTop+',left='+theLeft+',scrollbars="yes"';
theWin=window.open(url,'',features);
}
function autoResize(id){
var newheight;
var newwidth;
if(document.getElementById){
newheight = document.getElementById(id).contentWindow.document.body.scrollHeight;
newheight = screen.height - 300;
}
document.getElementById(id).height = (newheight) + "px";
}
STEM, Research and Writing Resources for Journalists
Science
Environment
References
Laws and Regulations
Programs
Earth Science
Global Warming
Climate Change
Energy
Natural Disasters
Water
Astronomy
Biology
Medicine