define(["../var/document","../var/support"],function(document,support){(function(){varinput=document.createElement("input"),select=document.createElement("select"),opt=select.appendChild(document.createElement("option"));input.type="checkbox";// Support: iOS<=5.1, Android<=4.2+// Default value for a checkbox should be "on"support.checkOn=input.value!=="";// Support: IE<=11+// Must access selectedIndex to make default options selectsupport.optSelected=opt.selected;// Support: Android<=2.3// Options inside disabled selects are incorrectly marked as disabledselect.disabled=true;support.optDisabled=!opt.disabled;// Support: IE<=11+// An input loses its value after becoming a radioinput=document.createElement("input");input.value="t";input.type="radio";support.radioValue=input.value==="t";})();returnsupport;});