var tests = ["#A8D9FF","#FFA8C9","#F3E89E","#BCEF93"]; 
var rd=function(){return tests[Math.floor(Math.random()*tests.length)];}
var randcolor=rd();
var gc=function(){document.getElementById("lcontaintwo").style.background=randcolor;document.getElementById("lcontainthree").style.background=randcolor;}
gc();