JS Add and Remove Simple Instances of DIV

JS Add and Remove Simple Instances of DIV

function addDiv(w,h){ 
 // If there was " divCell "This layer, delete this layer first 
 deleteDiv();
 // Create 1 A div 
 var my = document.createElement("divCell"); 
 // Add to Page  
 document.body.appendChild(my); 
 // Specifies this by style div The location mode of , If you want to set it yourself div Location of , This sentence must have , Comment it out and you can know the effect ~ Give it a try  
 my.style.position="absolute"; 
 // Specify by style x Coordinates ( Random number 0~450) 
 my.style.top= Math.round(Math.random()*450); 
 // Specify by style y Coordinates ( Random number 0~700) 
 my.style.left= Math.round(Math.random()*700); 
 // Specify width by style  
 my.style.width=w; 
 // Specify Height by Style  
 my.style.height=h; 
 // Specify the background color by style ,, If it is a background picture   Examples are my.style.backgroundImage="url(img/3.jpg)" 
 my.style.backgroundColor="#ffffcc"; 
 // Add div Content of  
 //my.innerHTML=i++; 
 // Set style transparency 
 my.style.filter = "alpha(opacity=50)";
 // Settings ID
 my.id = "divCell"; 
 }
 
 function deleteDiv()
 {
 var my = document.getElementById("divCell");
 if (my != null)
  my.parentNode.removeChild(my);
 }