//主要用途节省页面空间
//====================
//  更新时间:2007年3月4日
//  fz_f@163.com
var score_layers = new Array( "layer1", "layer2" , "layer3" )//定义
var score_objs = new Array( score_layers.length );

function score_getObjs(){

	var nObjMax = score_layers.length;

	for( nCount = 0; nCount < nObjMax; nCount++ ){
		score_objs[nCount] = document.getElementById( score_layers[nCount] );
	}
}


function setMultitap( layerID ){

	score_objs[0] != null ? "" : score_getObjs();

	if( layerID == score_objs[0].id ){
		score_objs[0].style.display = "";
		score_objs[1].style.display = "none";
		score_objs[2].style.display = "none";


	}else if( layerID == score_objs[1].id ){
		score_objs[0].style.display = "none";
		score_objs[1].style.display = "";
		score_objs[2].style.display = "none";


	}else{
		score_objs[0].style.display = "none";
		score_objs[1].style.display = "none";
		score_objs[2].style.display = "";



	}
}