var alphaExp = /^[a-zA-Z]+$/; /* To accept alphabet only */
	var numericExpression = /^[0-9]+$/; /* To accept numbers only */
	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/; /* To validate e-mail address */

   
  function validate_index()
  {
	  	 if(document.contactindex.fname.value == '') {
		  alert('Please enter the Name !');
		  document.contactindex.fname.focus();
		return false;
    }
		 else if(document.contactindex.phone.value == '') {
		  alert('Please enter the Phone number!');
		  document.contactindex.phone.focus();
		return false;
    }
	 else if(document.contactindex.email.value == '') {
		  alert('Please enter the E-mail Id !');
		  document.contactindex.email.focus();
		return false;
    }
	else if(!document.contactindex.email.value.match(emailExp)){
			alert("Invalid email address. Please enter again");
			 document.contactindex.email.focus();
		return false;
		}
		
	alert('Thank you for Contacting us.One of our Patient Coordinator will call you back shortly');
	return true;
  }
  
    function validate_sub()
  {
	  	 if(document.contactsub.fname.value == 'First Name') {
		  alert('Please enter the Name !');
		  document.contactsub.fname.focus();
		return false;
    }
		 else if(document.contactsub.phone.value == 'Phone') {
		  alert('Please enter the Phone number!');
		  document.contactsub.phone.focus();
		return false;
    }
	 else if(document.contactsub.email.value == 'E-mail') {
		  alert('Please enter the E-mail Id !');
		  document.contactsub.email.focus();
		return false;
    }
	else if(!document.contactsub.email.value.match(emailExp)){
			alert("Invalid email address. Please enter again");
			 document.contactsub.email.focus();
		return false;
		}
		
	alert('Thank you for Contacting us.One of our Patient coordinator will call you back shortly');
	return true;
  }
  
  
  
  function validate_news()
  {
	  if(document.news.email.value == '') {
		  alert('Please enter the E-mail Id !');
		  document.news.email.focus();
		return false;
    }
	else if(!document.news.email.value.match(emailExp)){
			alert("Invalid email address. Please enter again");
			 document.news.email.focus();
		return false;
		}
		
	alert('Thank you for Subscribing.');
	return true;
  }
  
  
  
	
 function validate_contact()
  {
	  	 if(document.contact.fname.value == '') {
		  alert('Please enter the First Name!');
		  document.contact.fname.focus();
		return false;
    }
	
	 else if(document.contact.phone.value == '') {
		  alert('Please enter the Phone No.!');
		  document.contact.phone.focus();
		return false;
    }
	else if(document.contact.email.value == '') {
		  alert('Please enter the E-mail Id!');
		  document.contact.email.focus();
		return false;
    }
	else if(!document.contact.email.value.match(emailExp)){
			alert("Invalid email address. Please enter again");
			document.contact.email.focus();
		return false;
		}
	
	
	
	else if(document.contact.city.value == '') {
		  alert('Please enter the City!');
		  document.contact.city.focus();
		return false;
    }
	
	else if(document.contact.zip.value == '') {
		  alert('Please enter the ZIP code!');
		  document.contact.zip.focus();
		return false;
    }
	
	alert('Thank you for Contacting us.One of our Patient Coordinator will call you back shortly');
	return true;
  }
  
  function valid_consult()
  {
	  	 if(document.online.fname.value == '') {
		  alert('Please enter the Name!');
		  document.online.fname.focus();
		return false;
    }
	
	else if(document.online.lname.value == '') {
		  alert('Please enter the Last Name!');
		   document.online.lname.focus();
		return false;
    }
	
		else if(document.online.gender.value == 'Please select one') {
		  alert('Please select the Gender!');
		   document.online.gender.focus();
		return false;
    }
	
	else if(document.online.phone.value == '') {
		  alert('Please enter the Phone No.!');
		   document.online.phone.focus();
		return false;
    }
	
	else if(document.online.email.value == '') {
		  alert('Please enter the E-mail Id!');
		   document.contact.email.focus();
		return false;
    }
	else if(!document.online.email.value.match(emailExp)){
			alert("Invalid email address. Please enter again");
			 document.contact.email.focus();
		return false;
		}
		
	alert('Thank you for Contacting us.One of our Patient Coordinator will call you back shortly');
	return true;
  }
  
  
   function valid_contact()
  {
	  	 if(document.contact.fname.value == '') {
		  alert('Please enter the Name!');
		  document.contact.fname.focus();
		return false;
    }
	
	else if(document.contact.email.value == '') {
		  alert('Please enter the E-mail Id!');
		   document.contact.email.focus();
		return false;
    }
	else if(!document.contact.email.value.match(emailExp)){
			alert("Invalid email address. Please enter again");
			 document.contact.email.focus();
		return false;
		}
	
		
	else if(document.contact.phone.value == '') {
		  alert('Please enter the Phone No.!');
		   document.contact.phone.focus();
		return false;
    }
	
	else if(document.contact.best.checked == false && document.contact.best2.checked == false && document.contact.best3.checked == false && document.contact.best4.checked == false) {
		  alert('Please select the time to contact you!');
		return false;
    }
	
	
	else if(document.contact.city.value == '') {
		  alert('Please enter the City!');
		   document.contact.city.focus();
		return false;
    }
	
	else if(document.contact.zip.value == '') {
		  alert('Please enter the ZIP code!');
		   document.contact.zip.focus();
		return false;
    }
	
		
	alert('Thank you for Contacting us.One of our Patient Coordinator will call you back shortly');
	return true;
  }