domready.js

gistfile1.js

var domReadyRE = /interactive|complete|loaded/
  , isReady = false

function checkStatus() {
  if(isReady) return
  if(domReadyRE.test(document.readyState)) {
    isReady = true
    ready()
    return
  }
setTimeout(checkStatus, 10)
}
checkStatus();

function ready() {
  // here goes your shitty code
}