function changeTrainSearch(num){
	var string="";
	//链接
	string+="<a href='../../../cityList.htm'>全国站点</a>&nbsp;&nbsp;";
	if(num==1){
		string+="站站查询&nbsp;&nbsp;";
	}else{
		string+="<a href='#' onclick='changeTrainSearch(1)'>站站查询</a>&nbsp;&nbsp;";
	}
	if(num==2){
		string+="按车次查询&nbsp;&nbsp;";
	}else{
		string+="<a href='#' onclick='changeTrainSearch(2)'>按车次查询</a>&nbsp;&nbsp;";
	}
	if(num==3){
		string+="按站名查询&nbsp;&nbsp;";
	}else{
		string+="<a href='#' onclick='changeTrainSearch(3)'>按站名查询</a>&nbsp;&nbsp;";
	}
	string+="<br>";
	//表单
	string+="<form action='../../../search.php' method='post'>";
	if(num==1){
		string+="出发站：<input type='text' size='10' name='startStation'>&nbsp;&nbsp;目的站：<input type='text' size='10' name='endStation'>";
	}else if(num==2){
		string+="车&nbsp;&nbsp;&nbsp;次：<input type='text' style='width:196px;' name='tname'>";
	}else if(num==3){
		string+="站&nbsp;&nbsp;&nbsp;名：<input type='text' style='width:196px;' name='station'>";
	}
	string+="&nbsp;&nbsp;<input type='submit' value='查 询'></form>";
	document.getElementById("webSearchTrain").innerHTML=string;
}