function ValidityPostJobForm(form1){
		var strErr='';
		var regNum=/^\d+$/
		var reg1 = /^\w+$/;
		var regEmail =/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/
		
		if(form1.Title.value.length == 0){
			TitleError.innerHTML= msgNameSenderLength;//'Moi ban cung cap thong tin.'
			form1.Title.focus();			
			return false;
		}else TitleError.innerHTML= '';

		//var intLimitCharListBox =10;
		//var intLimitCharTextBox =2;
		if(checkControlLimit(form1.Title,TitleError,intLimitWord,intLimitCharTextBox,false))
			return false;

		if (form1.Degree.value== 0){
			DegreeError.innerHTML = msgNameSenderLength;//'Moi ban cung cap thong tin.'
			form1.Degree.focus();		
			return false;			
		}else DegreeError.innerHTML= '';		
		if (form1.Major.value== 0){
			MajorError.innerHTML = msgNameSenderLength;//'Moi ban cung cap thong tin.'
			form1.Major.focus();			
			return false;
		}else MajorError.innerHTML= '';
		if (form1.Lang.value.length == 0){
			LangError.innerHTML = msgNameSenderLength;//'Moi ban cung cap thong tin. '
			form1.Lang.focus();	
			return false;
		}else LangError.innerHTML= '';
		//var intLimitCharListBox =10;
		//var intLimitCharTextBox =2;
		if(checkControlLimit(form1.Lang,LangError,intLimitWord,intLimitCharTextBox,false))
			return false;
		if (form1.Informatic.value.length == 0){
			InformaticError.innerHTML = msgNameSenderLength;//'Moi ban cung cap thong tin. '
			form1.Informatic.focus();			
			return false;
		}else InformaticError.innerHTML= '';
		//var intLimitCharListBox =10;
		//var intLimitCharTextBox =2;
		if(checkControlLimit(form1.Informatic,InformaticError,intLimitWord,intLimitCharTextBox,false))
			return false;
		if (!regNum.test(form1.YearsExperience.value) ){
			YearsExperienceError.innerHTML =  msgNameSenderLength+' kiểu số';
			form1.YearsExperience.focus();			
			return false;
		}else YearsExperienceError.innerHTML= '';
		if (form1.OtherRequirement.value.length == 0){
			OtherRequirementError.innerHTML= msgNameSenderLength;//'Moi ban cung cap thong tin. '
			form1.OtherRequirement.focus();
			return false;
		}else OtherRequirementError.innerHTML= '';
		//var intLimitCharListBox =10;
		//var intLimitCharTextBox =2;
		if(checkControlLimit(form1.OtherRequirement,OtherRequirementError,intLimitWord,intLimitCharListBox,true))
			return false;
		
		if (!regNum.test(form1.NumberPersonNeed.value)){
			NumberPersonNeedError.innerHTML = msgNameSenderLength+' kiểu số';//'Moi ban cung cap thong tin kieu so. '
			form1.NumberPersonNeed.focus();			
			return false;
		}else NumberPersonNeedError.innerHTML= '';

		if (form1.Locate.value== 0){
			LocateError.innerHTML = msgNameSenderLength;//'Moi ban cung cap thong tin. '
			form1.Locate.focus();			
			return false;
		}else LocateError.innerHTML= '';		
		if (form1.Salary.value== 0){
			SalaryError.innerHTML = msgNameSenderLength;//'Moi ban cung cap thong tin. '
			form1.Salary.focus();			
			return false;
		}else SalaryError.innerHTML= '';
		if (form1.Timework.value== 0){
			TimeworkError.innerHTML = msgNameSenderLength;//'Moi ban cung cap thong tin. '
			form1.Timework.focus();			
			return false;
		}else TimeworkError.innerHTML= '';
		if (form1.DescriptionJobRequire.value.length == 0){
			DescriptionJobRequireError.innerHTML = msgNameSenderLength;//'Moi ban cung cap thong tin. '
			form1.DescriptionJobRequire.focus();			
			return false;
		}else DescriptionJobRequireError.innerHTML= '';	
		//var intLimitCharListBox =10;
		//var intLimitCharTextBox =2;

		if(checkControlLimit(form1.DescriptionJobRequire,DescriptionJobRequireError,intLimitWord,intLimitCharListBox,true))
			return false;

		if (!dateReg.test(trim(form1.DateExpire.value)) ){
			DateExpireError.innerHTML =  msgEmail ;//'Moi ban cung cap thong tin. '
			form1.DateExpire.focus();			
			return false;
		}else DateExpireError.innerHTML= '';

		if (form1.NameContact.value.length == 0){
			NameContactError.innerHTML = msgNameSenderLength;//'Moi ban cung cap thong tin. '
			form1.NameContact.focus();			
			return false;
		}else NameContactError.innerHTML= '';
		//var intLimitCharListBox =10;
		//var intLimitCharTextBox =2;
		if(checkControlLimit(form1.NameContact,NameContactError,intLimitWord,intLimitCharTextBox,false))
			return false;	
		if (!regEmail.test(trim(form1.MailContact.value)) ){
			EmailContactError.innerHTML =  msgNameSenderLength+' hợp lệ' ;//'Moi ban cung cap thong tin. '
			form1.MailContact.focus();			
			return false;
		}else EmailContactError.innerHTML= '';
		//var intLimitCharListBox =10;
		//var intLimitCharTextBox =2;
		if(checkControlLimit(form1.MailContact,EmailContactError,intLimitWord,intLimitCharTextBox,false))
			return false;	
		return true;
	}