function showHideMajorOperation(theForm)
{
	x = document.getElementById("operationTr");
	var val = eval("document."+theForm+".Have_undergone_any_major_operation[0].checked");
	if(val==true)
	{
		x.style.display = '';
	}
	else
	{
		x.style.display = 'None';
	}
	return true;
}

function showHideOperation(theForm)
{
	x = document.getElementById("chronicProblem");
	var val = eval("document."+theForm+".Suffering_from_chronic_problem[0].checked");
	if(val==true)
	{
		x.style.display = '';
	}
	else
	{
		x.style.display = 'None';
	}
}

function isEmailAddr(email)
{
  var result = false;
  var theStr = new String(email);
  var index = theStr.indexOf("@");
  if (index > 0)
  {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}
function validEmail(formField,fieldLabel,required)
{
	var result = true;
	
	if (result && (eval("document."+formField+".value.length") < 3) || !isEmailAddr(eval("document."+formField+".value")) )
	{
		alert("Please enter a complete email address in the form: yourname@yourdomain.com");
		eval("document."+formField+".focus()");
		result = false;
	}
   
  return result;

}
function validRequired(formField,fieldLabel)
{
	var result = true;
	if(eval("document."+formField+".value")=="")
	{
		alert('Please enter a value for the "' + fieldLabel +'" field.');
		eval("document."+formField+".focus()");
		result = false;
	}
	
	return result;
}
function allDigits(str,strComp)
{
	var v1 = inValidCharSet(str,strComp);//0123456789
	return v1;
}
function checkLength(formField,lent,fieldLabel)
{
	var result = true;
	var strforcheck = eval("document."+formField+".value");
	if(strforcheck.length>lent)
	{
		alert('Length of the "' + fieldLabel +'" field should be less than "' + lent + '"');
		eval("document."+formField+".focus()");
		result = false;
	}
	return result;
}
function inValidCharSet(str,charset)
{
	var result = true;

	// Note: doesn't use regular expressions to avoid early Mac browser bugs	
	for (var i=0;i<str.length;i++)
		if (charset.indexOf(str.substr(i,1))<0)
		{
			result = false;
			break;
		}
	
	return result;
}
function validDate(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
 	if (result)
 	{
 		var elems = formField.value.split("-");
 		
 		result = (elems.length == 3); // should be three components
 		
 		if (result)
 		{
 			var month = parseInt(elems[1],10);
  			var day = parseInt(elems[2],10);
 			var year = parseInt(elems[0],10);
			result = allDigits(elems[0]) && (month > 0) && (month < 13) &&
					 allDigits(elems[1]) && (day > 0) && (day < 32) &&
					 allDigits(elems[2]) && ((elems[2].length == 2) || (elems[2].length == 4));
 		}
 		
  		if (!result)
 		{
 			alert('Please enter a date in the format YYYY-MM-DD for the "' + fieldLabel +'" field.');
			formField.focus();
		}
	} 
	return result;
}

function checkDigits(formField,fieldLabel,strDigit)
{
	var result = true;
	if(!allDigits(eval("document."+formField+".value"),strDigit))//'0123456789'
	{
		alert('Please enter valid value for the "' + fieldLabel +'" field.');
		eval("document."+formField+".focus()");
		result = false;
	}
	return result;
}

 
function Validateform(theForm)
{
		 
	 if (!validRequired(theForm+".firstname","First Name"))
		return false;

     if (!validEmail(theForm+".email","E-mail",""))
		return false;
		 
	 if (!validRequired(theForm+".address","Address"))
		return false;	
		
	 if (!validRequired(theForm+".city","City"))
		return false;	
		
	 if (!validRequired(theForm+".state","State "))
		return false;			
			
	 if (!validRequired(theForm+".zipcode","Zip Code"))
		return false;	
		
	 
	 if (!validRequired(theForm+".day_phone_number","Day Phone Number"))
		return false;	
		
	 if(!checkDigits(theForm+".day_phone_number","Day Phone Number",'0123456789.'))
	   return false;
	   
	
		 
	  return true; 
	

}