Answers for "change background in js"

javascript style background color

// change background color for specific id ..
function changebackground(){
	document.getElementById('id').style.backgroundColor = 'green' ; 
}
// change background color for whole body..
function changebackground(){
	document.body.style.backgroundColor = 'green';
}

javascript change background color

document.body.style.backgroundColor = "yellow";

change background with js

document.body.style.backgroundColor = "red";

change background with js

object.style.background = "color image
repeat attachment position size origin clip|initial|inherit"

change background with js

document.body.style.backgroundRepeat = "repeat-y";