html - Javascript: Div is opening but not collapsing back -


I have this div that I have created, I want to expand it when a link is clicked and it Click again It seems that it is expanding correctly, but it has not been eliminated. Please 

  & lt; Script & gt; Function Set Display () {document.getElementById ('divCollapse'). Style.display = "none"; } Function expandselected () {if document.getElementById ('divCollapse') style.display = "none") {document.getElementById ('divCollapse'). Style.display = "block";} and if (document.getElementById) ('divCollapse') style.display = "block") {document.getElementById ('divCollapse'). style.display = "none";}} & lt; / Script & gt;    
 
 
 To use  ==  to compare you Your  if / else if  is the block you are currently using  =  which is setting a display, is not checking it.  
  & lt; Script & gt; Function Set Display () {document.getElementById ('divCollapse'). Style.display = "none"; } Function expandselected () {if document.getElementById ('divCollapse') style.display == "none") {document.getElementById ('divCollapse'). Style.display = "block";} and if (document style.isplay.com ('divCollapse'). Style.display = "none";}}  element 'divCollapse'. Style .display == "block") {document.getElementById ('divCollapse').

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