function $(objID) {
	return document.getElementById(objID);
}

/*导航切换*/
function nav_on(num){
  if(curtype = $("nav_"+num)){
    curtype.className ='nav_on';
    if(num != 'home'){
    $("nav_home").className = '';
    }
  }
}


/*tag切换*/
function sel_tag(obj,num,no){
  if(!no) no =2;
  var endi = 1+no;
  for(i=1;i<endi;i++){
    if(i == num){
      $(obj+'_'+i).className = 'on';
      $(obj+'_content_'+i).style.display = 'block';        
    }else{
      $(obj+'_'+i).className = 'off';
      $(obj+'_content_'+i).style.display = 'none';           
    }        
  }
}

function chk(t){
	if(t.value=='请输入需要查找的内容'){t.value='';t.style.color='#000000';}
}

function chk_jd(){
  var tf = $("jd_so")
  if(tf.q.value != ''){
    tf.q.value += ' 景点';
  }else{
    alert("请输入要查找的景点名称");
    return false;  
  }
  //tf.submit();  
}

function chk_so(obj){
  var tf = $(obj);
  if(tf.q.value == ''){
    alert("请输入关键词");
    return false;
  }
}

function pagecheck(turl,ext){
    var inputs = document.getElementsByTagName('input'); 
    for (var i = 1; i < inputs.length; i++) {
      var input = inputs[i];
      if (input.type == "text" && input.name == "custompage" && input.value != "") {
      	window.location=turl+input.value+ext;
      }
		}		
}


function b(s){
  s=$(s);
  if(!s){return}
  s.onmouseenter=function(){this.className = this.className + ' hover';};
  s.onmouseleave=function(){this.className = this.className.replace(" hover","");}
}

function init(){
  document.soform.q.focus();
  b("more_service");
}