从phpcms系统的分页函数改过来的。

/**
 * pages 总页数
 * curr_page 当前分页
 * url URL规则
 * eg:mypage(20,10,"aaa.php")
 */
function mypage(pages,curr_page,url){
	var setpages = 10;
	var page = setpages + 1;
	var offset = setpages/2 - 1;
	var from = curr_page - offset;
	var to = curr_page + offset;
	var more = 0;
	if(page >= pages) {
		from = 2;
		to = pages-1;
	} else {
		if(from <= 1) {
			to = page-1;
			from = 2;
		}  else if(to >= pages) {
			from = pages-(page-2);
			to = pages-1;
		}
		more = 1;
	}
	
	var multipage = '';
	if(curr_page > 0) {
		if(curr_page > 1) {
			multipage += '<a href="'+ url+'?page='+(curr_page-1) +'">上一页</a>';
		}
		if(curr_page == 1) {
			multipage += '<a class="current">1</a>';
		} else if(curr_page > 6 && more) {
			multipage += '<a href="'+ url +'">首页</a>...';
		} else {
			multipage += '<a href="'+ url +'">1</a>';
		}
	}
	for(i = from; i <= to; i++) {
		if(i != curr_page) {
			multipage += '<a href="'+ url+'?page='+i +'">'+ i +'</a>';
		} else {
			multipage += '<a class="current">'+ i +'</a>';
		}
	}
	if(curr_page < pages) {
		if(curr_page < pages - 5 && more) {
			multipage += '...<a href="'+ url+'?page='+pages +'">尾页</a><a href="'+ url+'?page='+(curr_page+1) +'">下一页</a>';
		} else {
			multipage += '<a href="'+ url+'?page='+pages +'">'+ pages +'</a><a href="'+ url+'?page='+(curr_page+1) +'">下一页</a>';
		}
	} else if(curr_page == pages) {
		multipage += '<a class="current">'+ pages +'</a>';
	} else {
		multipage += '<a href="">'+ pages +'</a><a href="'+ url+'?page='+(curr_page+1) +'">下一页</a>';
	}
	
	return multipage;
}