String.prototype.trim = function(){
	return this.replace(/^\s*|\s*$/g,"");
}

var notstring="abcdefghigklmnopqrstuvwxyz";
//表单提交
function checkForm(){
	var searchKey = $F('sw');
	var patrn=/[`~!@#$%^&*()+=\-_|\\\]\[\{\}:;',.<>?"\/]?/g;
	searchKey = searchKey.replace(patrn,'');
	if(searchKey.trim()==''){
		return;
	}else if(notstring.indexOf(searchKey.trim().toLowerCase())!=-1){
		return;
	}
	var school = "";
	var radio = document.searchForm.school;	
	
		for(i=0;i<radio.length;i++){			
			if(radio[i].checked==true){
				school = radio[i].value;
			}
		}

	
	//处理ajax乱码
    var sw = encodeURI($F("sw"));
		sw = encodeURI(sw);
	var url = '/ForwardAction';
	var pars = "/ForwardAction?forward=SearchKeyAddAction&sw="+sw+"&school="+school+"&search_Subjects="+$F('search_Subjects');
	var myAjax = new Ajax.Updater('',url,{method: 'get',parameters: pars});
	$('searchForm').submit();	
}


var imgId = "1";
//点击图片
function click_img(id){	
	
	if($(id).src.indexOf("_1.jgp")==-1){
		$(id).src = $(id).src.replace("_1.jpg",".jpg");
		$(imgId).src = $(imgId).src.replace("_1.jpg",".jpg");	
		imgId = id;
		//设置学科分类标识
		$('search_Subjects').value=id-1;
		/*
		*id>3说明已经超过小学的科目科目范围
		*小学只可以搜索语文，数学，外语
		*/
		if(id>3){			
			if($('xiaoxueradio').checked==true){
				$('chuzhongradio').checked=true;
			}
			$('xiaoxue').style.display='none';
			$('chuzhong').style.display='';
			chick_radio(2,'chuzhongradio');
		}else if(id<10&&id>=3){
			$('xiaoxue').style.display='';
			$('chuzhong').style.display='';
			chick_radio(1,'xiaoxueradio')
		}
		if(id>=10){
			$('xiaoxue').style.display='none';
			$('chuzhong').style.display='none';
			$('gaozhong').checked=true;
			chick_radio(3,'gaozhong')
		}
	}	
	//hotSearch(id);
	//首页推送内容	
	onover(id);
	indexTSSubject(id-1);
	
}
//鼠标移入图片
function onover(id){	
	var img = $(id).src;
	if(img.indexOf('_1.jpg')==-1){
		img = img.replace('.jpg','_1.jpg');
		$(id).src = img;		 
	}	
}
//鼠标移出图片
function onout(id){
	var img = $(id).src;	
	if(img.indexOf('_1.jpg')!=-1&&id!=imgId){
		img = img.replace('_1.jpg','.jpg');
		$(id).src = img;		
	}
}


//单选改变热门搜索
function chick_radio(csr,id){		
	this.csr = csr;
	$('paperList').innerHTML='正在加载中,请稍候......';
	$('hotproList').innerHTML='正在加载中,请稍候......';
	$('proList').innerHTML='正在加载中,请稍候......';
	setTimeout('goindexTSSchool()',0) ;	
}
function goindexTSSchool(){
	indexTSSchool(this.csr);//首页推送;
}
 function checkFormHot(swhot){
	document.searchForm.sw.value=swhot;
	checkForm();
  }



		
 //控制显示图片
var image1=0;
var imgs1 = "";

function onover1( id,imgNum ){	 
   var M=1;
   for(;M<6;M++){
	  if("1_"+M==id){
		$(id).src="images/" + imgNum + ".jpg";
	  }else{
		$("1_"+M).src="images/" + M+"-1" + ".jpg";
	  }
   }
	var N=1;	
	for(;N<6;N++){		
	    if(id+"_list"=="1_"+N+"_list"){
		   $(id+"_list").style.display='';
		 }else{
			$("1_"+N+"_list").style.display='none';
		}
	  }
}

function onout1( id,imgNum,imgNum1 ){
	 
   var M=1;
   for(;M<6;M++){
	  if("1_"+M==id){
		$(id).src="images/" + imgNum1 + ".jpg";
	  }else{
		$("1_"+M).src="images/" + M+"-1" + ".jpg";
	  }
   }
	
}
    
function click_img1(id,imgNum,imgNum1){
	
	if(id!='1_1'){
		$("1_1").src="images/1-1.jpg";	
	}
	if(image1!=0){		
		$( image1 ).src = imgs1;	
	 }
	image1 = id;
	imgs1 = "images/"+imgNum1+".jpg";
	$(id).src = "images/"+imgNum+".jpg";
    var N=1;	
	for(;N<6;N++){		
		if(id+"_list"=="1_"+N+"_list"){
			$(id+"_list").style.display='';
		}else{
			$("1_"+N+"_list").style.display='none';
		}
	}
	
 }
//首页推送内容
 function indexTSSubject(su){
	paperSubject(su);//试卷
	hotproSubject(su);//热点试题
	proSubject(su);//相关搜索
 }
  function indexTSSchool(sc){   
	paperSchool(sc);
	hotproSchool(sc);
	proSchool(sc);
 }


function gosw(){
	if($('sw').value=='请输入您要搜索的知识点或关键字'){
		$('sw').value='';
		$('sw').style.color='';
	}
}
function setsw(){
	$('sw').value='请输入您要搜索的知识点或关键字';
	$('sw').style.color='#cccccc';
	$('sw').focus();
}

function checkForm2(){
	var searchKey = $F('sw');
	var patrn=/[`~!@#$%^&*()+=\-_|\\\]\[\{\}:;',.<>?"\/]?/g;
	searchKey = searchKey.replace(patrn,'');
	if(searchKey.trim()==''){
		return;
	}else if(notstring.indexOf(searchKey.trim().toLowerCase())!=-1){
		return;
	}
	
	//处理ajax乱码
    var sw = encodeURI($F("sw"));
		sw = encodeURI(sw);
	var url = '/ForwardAction';
	var pars = "/ForwardAction?forward=SearchKeyAddAction&sw="+sw+"&school="+$F('school')+"&search_Subjects="+$F('search_Subjects');
	var myAjax = new Ajax.Updater('',url,{method: 'get',parameters: pars});
	$('searchForm').submit();
}