function simpleMachicharaUpdate(element) { element.style.top = Math.floor(Math.random()*90) + "%"; element.style.left = Math.floor(Math.random()*90) + "%"; window.setTimeout(function() { simpleMachicharaUpdate(element); }, 5000+Math.floor(Math.random()*25000)); } function simpleMachichara(imageUrl) { var machicharaSimpleElement = document.createElement("div"); machicharaSimpleElement.zIndex = 1000; machicharaSimpleElement.style.position = "fixed"; machicharaSimpleElement.style.top = "50%"; machicharaSimpleElement.style.left = "50%"; document.body.appendChild(machicharaSimpleElement); var machicharaSimpleImageElement = document.createElement("img"); machicharaSimpleImageElement.src = imageUrl; machicharaSimpleImageElement.style.border = "none"; machicharaSimpleElement.appendChild(machicharaSimpleImageElement); simpleMachicharaUpdate(machicharaSimpleElement); }