$(function(){

	var search = $("input[name='K']");
	var submit = $("button[name='submit']");
	search.focus(function(){
		if ($(this).val("请输入您要查找的关键词")) {
			$(this).val("");
		}
	});
	search.blur(function(){
		if ($(this).val() == "") {
			$(this).val("请输入您要查找的关键词");
		}
	});
	$("#searchNews").submit(function () {
		var searchStr = utils.trim($(this).children("input").val(), 1);
		var searchUrl = "https://www.afzhan.com/tech_news/t0/list_p0.html";
		if (searchStr == "" || searchStr == "请输入您要查找的关键词") {
			alert("请输入您要查找的关键词！");
			return false;
		} else {
			$(this).attr("method", "post");
			$(this).attr("target", "_blank");
			$(this).attr("action", searchUrl);
			return true;
		}
	});
	});