function SubmitTopLine(){
	if (document.TopLineSearch.lineCity.value==""||document.TopLineSearch.lineCity.value=="输入出发地点"){
		alert("请输入出发城市!")
		document.TopLineSearch.lineCity.focus();
		return false;
	}
	if (document.TopLineSearch.lineKeywords.value=="输入目的地点"){
		alert("请输入目的地/关键词!")
		document.TopLineSearch.lineKeywords.focus();
		return false;
	}
	document.TopLineSearch.submit();
	}
	
function SubmitTophotel(){
	if (document.searchhotel.hotel_name.value==""||document.searchhotel.hotel_name.value=="请输入酒店名称"){
		alert("请输入酒店名称!")
		document.searchhotel.hotel_name.focus();
		return false;
	}
	
	document.searchhotel.submit();
	}
function SubmitTojd(){
	if (document.jdtopsearch.serch.value==""||document.jdtopsearch.serch.value=="请输入景点名称"){
		alert("请输入景点名称!")
		document.jdtopsearch.serch.focus();
		return false;
	}
	
	document.jdtopsearch.submit();
	}
function SubmitTolxs(){
	if (document.lxssearch.lxs_keywords.value==""||document.lxssearch.lxs_keywords.value=="请输入旅行社名称"){
		alert("请输入旅行社名称!")
		document.lxssearch.serch.focus();
		return false;
	}
	
	document.lxssearch.submit();
	}
function SubmitTohcp(){
	if (document.hcptopsearch.start.value==""||document.hcptopsearch.start.value=="请输入出发站点"){
		alert("请输入出发站点!")
		document.hcptopsearch.start.focus();
		return false;
	}
	if (document.hcptopsearch.end.value==""||document.hcptopsearch.end.value=="请输入目的站点"){
		alert("请输入目的站点!")
		document.hcptopsearch.end.focus();
		return false;
	}
	document.hcptopsearch.action="http://www.58.com/huochepiao/"+document.hcptopsearch.start.value+"_"+document.hcptopsearch.end.value+"/"
	document.hcptopsearch.submit();
	}