Validation fails in Chrome

function validate_required(field,alerttxt){with (field){if (value==null||value==""){alert(alerttxt);return false;}else{return true;}}}



function validate_phone(field,alerttxt)
{
	with (field)
	{
		var reg=/^\d{8,13}$/;
		var phone = value;
		if(phone!=null&&phone!="")
		{
			if(reg.test(phone) == false)
			{
				alert(alerttxt);
				return false;
				}
				}
				else
				{
					return true;
					}
					}
					}
					
					
					function validate_age(field,alerttxt)
{
	with (field)
	{
		var reg=/^\d{2,2}$/;
		var age = value;
		if(age!=null&&age!="")
		{
			if(reg.test(age) == false)
			{
				alert(alerttxt);
				return false;
				}
				}
				else
				{
					return true;
					}
					}
					}
					
function validate_salary(field,alerttxt)
{
	with (field)
	{
		var reg=/^\d{4,6}$/;
		var salary = value;
		if(salary!=null&&salary!="")
		{
			if(reg.test(salary) == false)
			{
				alert(alerttxt);
				return false;
				}
				}
				else
				{
					return true;
					}
					}
					}
					
					function validate_height(field,alerttxt)
{
	with (field)
	{
		var reg=/^\d{3,3}$/;
		var height = value;
		if(height!=null&&height!="")
		{
			if(reg.test(height) == false)
			{
				alert(alerttxt);
				return false;
				}
				}
				else
				{
					return true;
					}
					}
					}
					
					function validate_members(field,alerttxt)
{
	with (field)
	{
		var reg=/^\d{1,1}$/;
		var members = value;
		if(members!=null&&members!="")
		{
			if(reg.test(members) == false)
			{
				alert(alerttxt);
				return false;
				}
				}
				else
				{
					return true;
					}
					}
					}
					
					function validate_email(field,alerttxt){with (field){var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;var address = value;if(reg.test(address) == false) {alert(alerttxt);    return false;}else {return true;}}}
					

					
					

function validate_form(thisform)
{
	
	with (thisform)
	{
		if (validate_required(name,"Name must be filled out!")==false)
		{
			name.focus();
			return false;
			}
			
			




/* if ((validate_required(age,"Age must be filled out!")==false) || (validate_age(age,"Not a valid age!")==false))  {age.focus();return false;}*/
 if (validate_required(gender,"Gender must be filled out!")==false) {gender.focus();return false;}
 /*if (validate_required(marriage,"Marriage must be filled out!")==false) {marriage.focus();return false;}*/
 if (validate_required(dob,"Date of Birth must be filled out!")==false) {dob.focus();return false;}
 if (validate_required(caste,"Caste must be filled out!")==false) {caste.focus();return false;}
 if (validate_required(place,"Place must be filled out!")==false) {place.focus();return false;}
 if (validate_required(rasi,"Rasi must be filled out!")==false) {rasi.focus();return false;}
 if (validate_required(star,"Star must be filled out!")==false) {star.focus();return false;}
 if (validate_required(height,"Height must be filled out!")==false) {height.focus();return false;}
 if (validate_required(qualification,"Qualification must be filled out!")==false) {qualification.focus();return false;}
 if (validate_required(profession,"Profession must be filled out!")==false) {profession.focus();return false;}
 
 if ((validate_required(income,"Monthly Income must be filled out!")==false)|| (validate_salary(income,"Not a valid income amount!")==false)) {income.focus();return false;}
 if (validate_required(complexion,"Complexion must be filled out!")==false) {complexion.focus();return false;}

 if (validate_required(physique,"Physique must be filled out!")==false) {physique.focus();return false;}
  if (validate_required(category,"Category must be filled out!")==false) {category.focus();return false;}
  if ((validate_required(email,"Email must be filled out!")==false) || (validate_email(email,"Not a valid e-mail address!")==false))
{email.focus();

return false;
}
  /*if (validate_required(pcreated,"Father Name must be filled out!")==false) {pcreated.focus();return false;}*/
   if (validate_required(address,"Address must be filled out!")==false) {address.focus();return false;}
    if ((validate_required(cell,"Cell Number must be filled out!")==false)|| (validate_phone(cell,"Not a valid cell number!")==false)) {cell.focus();return false;}
	 if (validate_required(native,"Native must be filled out!")==false) {native.focus();return false;}
 if (validate_required(naddress,"Native address must be filled out!")==false) {naddress.focus();return false;}
  if (validate_required(nphone,"Native Phone number must be filled out!")==false) {nphone.focus();return false;}
 if (validate_required(family,"Family name must be filled out!")==false) {family.focus();return false;}
 if (validate_required(fathername,"Father Name must be filled out!")==false) {fathername.focus();return false;}
 if (validate_required(fprofession,"Father Profession must be filled out!")==false) {fprofession.focus();return false;}
 if (validate_required(mothername,"Mother Name must be filled out!")==false) {mothername.focus();return false;}
 if (validate_required(mprofession,"Mother Profession must be filled out!")==false) {mprofession.focus();return false;}
 if (validate_required(rname1,"Relationship name must be filled out!")==false) {rname1.focus();return false;}
 if (validate_required(raddr1,"Relationship address must be filled out!")==false) {raddr1.focus();return false;}
  if (validate_required(rrel1,"Relationship must be filled out!")==false) {rrel1.focus();return false;}
  if (validate_required(rname2,"Relationship name be filled out!")==false) {rname2.focus();return false;}
 if (validate_required(raddr2,"Relationship address must be filled out!")==false) {raddr2.focus();return false;}
	  if (validate_required(rrel2,"Relationship must be filled out!")==false) {rrel2.focus();return false;}
	  
	  

}}

if (window.XMLHttpRequest)
	  {// code for IE7+, Firefox, Chrome, Opera, Safari
	  xmlhttp=new XMLHttpRequest();
	  }
	else
	  {// code for IE6, IE5
	  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	  }