//tabs
function tabit(btn){
	var idname = new String(btn.id);
	var s = idname.indexOf("_");
	var e = idname.lastIndexOf("_")+1;
	var tabName = idname.substr(0, s);
	var id = parseInt(idname.substr(e, 1));
	var tabNumber = btn.parentNode.childNodes.length;
	for(i=0;i<tabNumber;i++){
			document.getElementById(tabName+"_div_"+i).style.display = "none";
			document.getElementById(tabName+"_btn_"+i).className = "";
		};
		document.getElementById(tabName+"_div_"+id).style.display = "block";
		btn.className = "curr";
};

//好友分享
function copyToClipBoard(){
	var clipBoardContent="";
	clipBoardContent+=document.title;
	clipBoardContent+="n";
	clipBoardContent+=this.location.href;
	window.clipboardData.setData("Text",clipBoardContent);
	alert("复制成功，请粘贴到你的QQ/MSN上推荐给你的好友");
}