function Checkw(strCode) {
 var str = strCode;
 var Expression = /^([a-zA-Z0-9]|[\u4E00-\u9FA5]|[-_－——\.。”'”“’‘]){2,20}$/;
 var objExp=new RegExp(Expression);
 if(objExp.test(str)==true){
   return true;
   }else{
   return false;
   }
}

function Checkwdel(strCode) {
 var str = strCode;
 var Expression = /^([a-zA-Z0-9]|[\u4E00-\u9FA5]|[-_－——\.。'”“’‘])*覆铜板([a-zA-Z0-9]|[\u4E00-\u9FA5]|[-_－——\.。"'”“’‘])*$/;
 var objExp=new RegExp(Expression);
 if(objExp.test(str)==true){
   return true;
   }else{
   return false;
   }
}

function Checkeyword(strCode) {
 var str = strCode;
 var Expression = /^([a-zA-Z0-9]|[\u4E00-\u9FA5]|[-_－——\.。]){1,6}(,([a-zA-Z0-9]|[\u4E00-\u9FA5]|[-_－——\.。]){1,6})*,?$/;
 var objExp=new RegExp(Expression);
 if(objExp.test(str)==true){
   return true;
   }else{
   return false;
   }
}

function Checkpic(strCode) {
 var str = strCode;
 var Expression = /^([a-zA-Z0-9]|[\/.?=_-]){8,100}\.([jpge]){3,4}$/;
 var objExp=new RegExp(Expression);
 if(objExp.test(str)==true || str==""){
   return true;
   }else{
   return false;
   }
}

function Checkphone(strCode) {
 var str = strCode;
 var Expression = /^([0-9]|[-]){8,20}$/;
 var objExp=new RegExp(Expression);
 if(objExp.test(str)==true){
   return true;
   }else{
   return false;
   }
}

function Checkperson(strCode) {
 var str = strCode;
 var Expression = /^([\u4E00-\u9FA5]){2,5}$/;
 var objExp=new RegExp(Expression);
 if(objExp.test(str)==true){
   return true;
   }else{
   return false;
   }
}

function Checkemail1(strCode) {
 var str = strCode;
 var Expression = /^([a-z]|[0-9]|[-_]){3,15}$/;
 var objExp=new RegExp(Expression);
 if(objExp.test(str)==true || str==""){
   return true;
   }else{
   return false;
   }
}

function Checkemail2(strCode) {
 var str = strCode;
 var Expression = /^(([a-z]|[0-9]|[.]){4,15}|([a-z]|[0-9]){2,10})[.]([a-z]){2,5}$/;
 var objExp=new RegExp(Expression);
 if(objExp.test(str)==true || str==""){
   return true;
   }else{
   return false;
   }
}

function Checkewebsite(strCode) {
 var str = strCode;
 var Expression = /^[_a-zA-Z0-9-]+(.[_a-zA-Z0-9-]+)*$/;
 var objExp=new RegExp(Expression);
 if(objExp.test(str)==true || str==""){
   return true;
   }else{
   return false;
   }
}

function id(x) {
  if (typeof x == "string") return document.getElementById(x);
  return x;
  }
  
  
function checkbuysell(){
var arr=new Array();
                for(i=0;i<2;i++) 
                { 
 arr[i]=document.getElementById("buysell"+i);				
 if(arr[i].checked) {return true; break; }
                 }
return false;
}

function checklocation(){
var arr=new Array();
                for(i=0;i<15;i++) 
               { 
 arr[i]=document.getElementById("location"+i);
 if(arr[i].checked) {return true; break; }
                 }
return false;
}

function checkthick(){
var arr=new Array();
                for(i=0;i<12;i++) 
                { 
 arr[i]=document.getElementById("thick"+i);				
 if(arr[i].checked) {return true; break; }
                 }
return false;
}

function checksort(){
var arr=new Array();
                for(i=0;i<10;i++) 
               { 
 arr[i]=document.getElementById("sort"+i);
 if(arr[i].checked) {return true; break; }
                 }
return false;
}

 
function changeclass(objj){
 var strChar= objj.value;
 var titletip = document.getElementById("titletip");
 var titletipok =document.getElementById("titletipok");
 if(Checkw(strChar)) {
titletip.className = 'displaynone';
titletipok.className = 'displayok';
                      }else
					  {
titletip.className = 'displayp';
titletipok.className = 'displaynone';
  	  					}
}

function changeclasskw(objj){
 var strChar= objj.value;
 var keywordtip = document.getElementById("keywordtip");
 var keywordtipok =document.getElementById("keywordtipok");
 if(Checkeyword(strChar)) {
 keywordtip.className = 'displaynone';
 keywordtipok.className = 'displayok';
                      }else
					  {
 keywordtip.className = 'displayp';
 keywordtipok.className = 'displaynone';
 	  					}
}

function changeclasspic(objj){
 var strChar= objj.value;
 var pictip = document.getElementById("pictip");
 var pictipok =document.getElementById("pictipok");
 if(Checkpic(strChar)) {
 pictip.className = 'displaynone';
 pictipok.className = 'displayok';
                      }else
					  {
 pictip.className = 'displayp';
 pictipok.className = 'displaynone';
 	  					}
}

function changephoneclass(objj){
 var strChar= objj.value;
 var phonetip = document.getElementById("phonetip");
 var phonetipok =document.getElementById("phonetipok");
 if(Checkphone(strChar)) {
phonetip.className = 'displaynone';
phonetipok.className = 'displayok';
                      }else
					  {
phonetip.className = 'displayp';
phonetipok.className = 'displaynone';
  	  					}
}

function changepersonclass(objj){
 var strChar= objj.value;
 var persontip = document.getElementById("persontip");
 var persontipok =document.getElementById("persontipok");
 if(Checkperson(strChar)) {
persontip.className = 'displaynone';
persontipok.className = 'displayok';
                      }else
					  {
persontip.className = 'displayp';
persontipok.className = 'displaynone';
  	  					}
}

function Validate(form)
 {
 var strChar =form.title.value;
 var strCharcontent =form.content.value;
 var strChar1 =form.keyword.value;
 var charCount = strChar.length;
 var contentCount = strCharcontent.length;
 
  if(!checklocation())
 {
 alert ('请输入材料所在地区信息');
 return false;
 }
  
 if(!checkbuysell())
 {
 alert ('请输入买或卖信息');
 return false;
 }
 
  if(!checkthick())
 {
 alert ('请输入材料的厚度');
 return false;
 }
 
   if(!checksort())
 {
 alert ('请输入材料的板基材料');
 return false;
 }
 
 if(form.title.value== "")
 {
 alert ('请输入标题信息');
 form.title.focus();
 return false;
 }
 
 
  if(form.keyword.value== "")
 {
 alert ('请输入关键字信息');
 form.keyword.focus();
 return false;
 }
 
   if(form.content.value== "")
 {
 alert ('请输入内容信息');
 form.content.focus();
 return false;
 }
 
 var phone =form.phone.value;
 if(!Checkphone(phone))
 {
 alert ('请输入正确的电话号码信息');
 form.phone.focus();
 return false;
 }
 
  var person =form.person.value;
 if(!Checkperson(person))
 {
 alert ('请输入正确的联系人信息');
 form.person.focus();
 return false;
 }
 

 var email1 = form.email1.value;
  if(!Checkemail1(email1))
 {
 alert ('请输入正确的email名，没有email请留空');
 form.email1.focus();
 return false;
 }

  var email2=form.email2.value;
  if(!Checkemail2(email2))
 {
 alert ('请输入正确的email2信息');
 form.email2.focus();
 return false;
 }
 
   var website=form.website.value;
  if(!Checkewebsite(website))
 {
 alert ('请输入正确的网站信息或留空');
 form.website.focus();
 return false;
 }
 /**/ 
/*
  if(!Checkeyword(strChar1))
 {
 alert ('请注意必须输入最少两个关键字，并且关键字不能超过六个汉字或六个字母');
 form.keyword.focus();
 return false;
 }


 if(form.content.value.match(/[&]+/))
 {
 alert("内容不得包含& 等字符");
 form.content.focus();
 return false;
 }
*/
 
  
 return true;
 }