Reset combox box in html with given index
<select id="myCombo" onchange="moreOptions()"> <option value="-1" selected="selected">Select options</option> <option id=" myCombo _1" value="1">One</option> <option id=" myCombo _2" value="2">Two</option> <option id=" myCombo _3" value="3">Three</option> </select> Javascript to reset onChange() method... function moreOptions(){ var selectedOption=document.getElementById(" myCombo ").value; if(selectedOption=="1"){ .......... }else if(selectedOption=="2"){ ........ }else if(selectedOption=="3"){ ....... }else{ document.getElementById(" myCombo ").selectedIndex="0"; //reset combox box with "Select options" } }