') } function getElementbyClass(classname){ ccollect=new Array() var inc=0 var alltags=document.all? document.all : document.getElementsByTagName("*") for (i=0; i 0) { offset = document.cookie.indexOf(search) if (offset != -1) { offset += search.length end = document.cookie.indexOf(";", offset); if (end == -1) end = document.cookie.length; returnvalue=unescape(document.cookie.substring(offset, end)) } } return returnvalue; } function getselectedItem(){ if (get_cookie(window.location.pathname) != ""){ selectedItem=get_cookie(window.location.pathname) return selectedItem } else return "" } function saveswitchstate(){ var inc=0, selectedItem="" while (ccollect[inc]){ if (ccollect[inc].style.display=="block") selectedItem+=ccollect[inc].id+"|" inc++ } document.cookie=window.location.pathname+"="+selectedItem } function do_onload(){ uniqueidn=window.location.pathname+"firsttimeload" getElementbyClass("switchcontent") if (enablepersist=="on" && typeof ccollect!="undefined"){ document.cookie=(get_cookie(uniqueidn)=="")? uniqueidn+"=1" : uniqueidn+"=0" firsttimeload=(get_cookie(uniqueidn)==1)? 1 : 0 //check if this is 1st page load if (!firsttimeload) revivecontent() } } if (window.addEventListener) window.addEventListener("load", do_onload, false) else if (window.attachEvent) window.attachEvent("onload", do_onload) else if (document.getElementById) window.onload=do_onload if (enablepersist=="on" && document.getElementById) window.onunload=saveswitchstate

Landsat Missions



Landsat Missions Timeline


Landsat Missions Timeline LDCM Landsat 7 Landsat 5 Landsat 4 Landsat 3 Landsat 2 Landsat 1



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