// JavaScript Document
function $(obj) {
	return (document.getElementById(obj))
}
function choose(temp){
	switch(temp){
		case"a":
			left1.className="leftin1";
			left2.className="leftin2";
			left3.className="leftin3";
			right1.className="right1";//top
			right2.className="right2";
			right3.className="right3";
			break;
		case"b":
			left1.className="leftin12";
			left2.className="leftin22";//left22 height:160px,
			left3.className="leftin3";
			right1.className="right1";
			right2.className="right22";//top
			right3.className="right3";
			break;
		case"c":
			left1.className="leftin13";//left12 height:70px;
			left2.className="leftin23";
			left3.className="leftin32";//left32 height:160px;
			right1.className="right1";
			right2.className="right2";
			right3.className="right32";//top
			break;
		}
	}