//#######
function ValidateEmail(ctl00_ContentPlaceHolder1_txt_email) 
{
var strMail = document.getElementById(ctl00_ContentPlaceHolder1_txt_email).value;
var regMail = /^\w+([-.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;
if (regMail.test(strMail))
{
return true;
}
else if(document.getElementById(ctl00_ContentPlaceHolder1_txt_email).value == "")
  {  document.getElementById(ctl00_ContentPlaceHolder1_txt_email).focus();
   alert("Invalid email format.\nPlease enter a valid email in the format user@host.domain.");
    return false;
  }
  else {
  document.getElementById(ctl00_ContentPlaceHolder1_txt_email).focus();
  alert("Invalid email format.\nPlease enter a valid email in the format user@host.domain.");
  return false;
  }
}
//##########
function checkValidname(ctl00_ContentPlaceHolder1_txt_company)
{
if(document.getElementById(ctl00_ContentPlaceHolder1_txt_company).value=="")
    {
        document.getElementById(ctl00_ContentPlaceHolder1_txt_company).focus();
        alert("Please Enter all the required field");
        return false;
     }          
}
//############
function checkValidForm()
{
var strMail = document.getElementById('ctl00_ContentPlaceHolder1_txt_email').value;
var regMail = /^\w+([-.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;
  
 if(document.getElementById('ctl00_ContentPlaceHolder1_txt_name').value=="")
    {
        document.getElementById('ctl00_ContentPlaceHolder1_txt_name').focus();
        alert("Please Enter your name");
        return false;
     }     
else if(document.getElementById('ctl00_ContentPlaceHolder1_txt_contact').value=="")
    {
        document.getElementById('ctl00_ContentPlaceHolder1_txt_contact').focus();
        alert("Please Enter your Contact No");
        return false;
     }  
else if(document.getElementById('ctl00_ContentPlaceHolder1_txt_email').value == "")
  { 
      document.getElementById('ctl00_ContentPlaceHolder1_txt_email').focus();
      alert("please Enter email id");
      return false;
   }

else if (regMail.test(strMail)==false)
  {      
      document.getElementById('ctl00_ContentPlaceHolder1_txt_email').focus();
      alert("Invalid email format.\nPlease enter a valid email in the format user@host.domain.");
       return false;
  }
     
else
  {
  return true;
  }      
}