The following Javascript code will help you change the background-color of your web-page automatically and at a time-interval (in milli-seconds) as specified in the code.
/* Method To Generate Random Numbers Between "0-255" for RGB Color-code Format & Assign To Body-Backgrond-Style */ function bgDisco() { var x =Math.round(255*Math.random()); var num1 =getHex(x); var y =Math.round(255*Math.random()); var num2 =getHex(y); var z =Math.round(255*Math.random()); var num3 =getHex(z); document.body.style.background="#"+num1+num2+num3; setTimeout("bgDisco()",1000); } /* Method To Convert Decimal To Hexadecimal */ function getHex(dec) { var hexArray = new Array( "0", "1", "2", "3","4", "5", "6", "7","8", "9", "A", "B","C", "D", "E", "F" ); var code1 = Math.floor(dec / 16); var code2 = dec - code1 * 16; var decToHex = hexArray[code2]; return (decToHex); }
Now on the body part call the “bgDisco()” in onload event.