var myhidden=document.getElementById("hiddencontainer");myhidden.value="White";document.getElementById("white_btn").style.backgroundColor="#45abff";document.getElementById("white_btn").style.borderColor="#45abff";document.getElementById("white_btn").style.color="#fff";document.getElementById("pink_btn").style.backgroundColor="#fff";document.getElementById("pink_btn").style.borderColor="#fff";document.getElementById("pink_btn").style.color="#000";document.getElementById("yellow_btn").style.backgroundColor="#fff";document.getElementById("yellow_btn").style.borderColor="#fff";document.getElementById("yellow_btn").style.color="#000";document.getElementById("black_btn").style.backgroundColor="#fff";document.getElementById("black_btn").style.borderColor="#fff";document.getElementById("black_btn").style.color="#000"