function checkForm()
 {
 name = document.getElementById("txtName").value;
 companyname = document.getElementById("txtCompanyName").value;
 email = document.getElementById("txtContactEmail").value;
 address = document.getElementById("txtAddress").value;
 phone = document.getElementById("txtContactPhone").value;
 check = document.getElementById("check").value;
  value1 = document.getElementById("value1").value;
 var url = /[^a-zA-Z0-9._]+/;
 var Phone = /[^0-9]+/;
 var Name = /[^A-Z a-z]+/;
 
 apos=email.indexOf("@");
 dotpos=email.lastIndexOf(".");
 
if (name == "") {
  hideAllErrors();
document.getElementById("nameError").style.display = "inline";
document.getElementById("txtName").select();
document.getElementById("txtName").focus();
  return false;
 }
 
 else if(Name.test(name))
 { hideAllErrors();
document.getElementById("name1Error").style.display = "inline";
document.getElementById("txtName").select();
document.getElementById("txtName").focus();
  return false;
  }
  
else if (companyname == "") {
  hideAllErrors();
document.getElementById("companynameError").style.display = "inline";
document.getElementById("txtCompanyName").select();
document.getElementById("txtCompanyName").focus();
  return false;
 }
   
 else if (email == "") {
  hideAllErrors();
document.getElementById("emailError").style.display = "inline";
document.getElementById("txtContactEmail").select();
document.getElementById("txtContactEmail").focus();
  return false;
  } 
 
  else if (apos<1||dotpos-apos<2) {
  hideAllErrors();
document.getElementById("email1Error").style.display = "inline";
document.getElementById("txtContactEmail").select();
document.getElementById("txtContactEmail").focus();
  return false;
  } 
  
  else if (address == "") {
  hideAllErrors();
document.getElementById("addressError").style.display = "inline";
document.getElementById("txtAddress").select();
document.getElementById("txtAddress").focus();
  return false;
  } 
  
  else if (phone == "") {
  hideAllErrors();
document.getElementById("phoneError").style.display = "inline";
document.getElementById("txtContactPhone").select();
document.getElementById("txtContactPhone").focus();
  return false;
  } 
  
  else if (Phone.test(phone)||phone.length<10||phone.length>14) {
  hideAllErrors();
document.getElementById("phone1Error").style.display = "inline";
document.getElementById("txtContactPhone").select();
document.getElementById("txtContactPhone").focus();
  return false;
  } 
   else if (check == "") 
	{
	hideAllErrors();
	document.getElementById("check1Error").style.display = "inline";
	document.getElementById("check").select();
	document.getElementById("check").focus();
	
	return false;
	}
  else if (check != value1) 
	{
	hideAllErrors();
	document.getElementById("checkError").style.display = "inline";
	document.getElementById("check").select();
	document.getElementById("check").focus();
	
	return false;
	}
  else
  { hideAllErrors();}
  return true;
  }

function hideAllErrors() {
document.getElementById("nameError").style.display = "none"
document.getElementById("name1Error").style.display = "none"
document.getElementById("companynameError").style.display = "none"
document.getElementById("emailError").style.display = "none"
document.getElementById("email1Error").style.display = "none"
document.getElementById("addressError").style.display = "none"
document.getElementById("phoneError").style.display = "none"
document.getElementById("phone1Error").style.display = "none"
document.getElementById("checkError").style.display = "none"
document.getElementById("check1Error").style.display = "none"
  }