function changeColor(color){document.getElementById('p0').style.background=color}
function changeColor1(color){document.getElementById('p1').style.background=color}
function changeColor2(color){document.getElementById('p2').style.background=color}
function changeColor3(color){document.getElementById('p3').style.background=color}
function changeColor4(color){document.getElementById('p4').style.background=color}
function changeColor5(color){document.getElementById('p5').style.background=color}
function changeColor6(color){document.getElementById('p6').style.background=color}