randomNumber = Math.floor(Math.random()*4+1); window.onload = function() { if (randomNumber == 1) { document.getElementById("backgroundvideo1").style.display = "inline"; document.getElementById("backgroundvideo2").style.display = "none"; document.getElementById("backgroundvideo3").style.display = "none"; document.getElementById("backgroundvideo4").style.display = "none"; } if (randomNumber == 2) { document.getElementById("backgroundvideo1").style.display = "none"; document.getElementById("backgroundvideo2").style.display = "inline"; document.getElementById("backgroundvideo3").style.display = "none"; document.getElementById("backgroundvideo4").style.display = "none"; } if (randomNumber == 3) { document.getElementById("backgroundvideo1").style.display = "none"; document.getElementById("backgroundvideo2").style.display = "none"; document.getElementById("backgroundvideo3").style.display = "inline"; document.getElementById("backgroundvideo4").style.display = "none"; } if (randomNumber == 4) { document.getElementById("backgroundvideo1").style.display = "none"; document.getElementById("backgroundvideo2").style.display = "none"; document.getElementById("backgroundvideo3").style.display = "none"; document.getElementById("backgroundvideo4").style.display = "inline"; } }