function validateEmail(emailad,message)
 {
	var exclude=/[^@\-\.\w]|^[_@\.\-]|[\._\-]{2}|[@\.]{2}|(@)[^@]*\1/;
	var check=/@[\w\-]+\./;
	var checkend=/\.[a-zA-Z]{2,3}$/;

 if(((emailad.search(exclude) != -1)||(emailad.search(check)) == -1)||(emailad.search(checkend) == -1))
	{
		alert(message);
		return false;
	}
 else
	{
		return true;
	}
}

function allDigits(str,fieldval)
{
	return inValidCharSet(str,"0123456789",fieldval);
}
function validateField(fieldvalue,message)
 {

if(Trim(fieldvalue) == '')
		{
			alert(message);
			return false;
		}
	else
       {
			return true;
       }

 }

function validateMemofield(fieldvalue,fieldname)
 {
  var fname = fieldname;
if(Trim(fieldvalue) == '')
      {
              alert("Please enter value in  field");
              return false;
      }

     else
       {
              return true;
       }

 }

function checkjavascript(validate)
{
  alert(validate);
}




function Trim(s)
   {
 	while(s.charAt(0)==' ')
	{
		s=s.substring(1,s.length);
	}
	   return s;
   }




//------------------------------------------------------------------------

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 validRequired(formField,fieldLabel)
{
	var result = true;

	if (formField.value == "")
	{
		alert('Please enter a value for the "' + fieldLabel +'" field.');
		formField.focus();
		result = false;
	}

	return result;
}

function validInt(str,fieldval)
{
	return inValidCharSet(str,"0123456789",fieldval);
}

function validStr(str,fieldval)
{
	return inValidStringCharSet(str,"abcdefghijklmnopqrstuvwxyz",fieldval);
}

function inValidStringCharSet(str,charset,fieldval)
{
	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)
		{
			alert("Please enter a text value in "+ fieldval);
			result = false;
			break;
		}

	return result;
}


function inValidCharSet(str,charset,fieldval)
{
	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)
		{
			alert("Please enter a numeric value in "+ fieldval);
			result = false;
			break;
		}

	return result;
}

function validEmail(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;

	if (result && ((formField.value.length < 3) || !isEmailAddr(formField.value)) )
	{
		alert("Please enter a complete email address in the form: yourname@yourdomain.com");
		formField.focus();
		result = false;
	}

  return result;

}

function validNum(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;

 	if (result)
 	{
 		if (!allDigits(formField.value))
 		{
 			alert('Please enter a number for the "' + fieldLabel +'" field.');
			formField.focus();
			result = false;
		}
	}

	return result;
}


/*function validInt(Fieldvalue,fieldLabel)
{
	var result = true;

	//if (required && !validRequired(formField,fieldLabel))
		//result = false;

 	if (result)
 	{
 		var num = parseInt(Fieldvalue);
 		if (isNaN(num))
 		{
 			alert('Please enter a number for the ' + fieldLabel +' field.');
			//formField.focus();
			result = false;
		}
	}

	return result;
}
*/

function monthstartDate(formField,fieldLabel,required)       //mm/dd/yyyy
{
	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[0]);
  			var day = parseInt(elems[1]);
 			var year = parseInt(elems[2]);
			result = validInt(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 MM/DD/YYYY for the "' + fieldLabel +'" field.');
			//formField.focus();
		}
	}

	return result;
}

function daystartDate(Fieldvalue,fieldLabel)       //dd/mm/yyyy
{
	var result = true;

	//if (required && !validRequired(formField,fieldLabel))
		//result = false;

 	if (result)
 	{
 		var elems = Fieldvalue.split("/");

 		result = (elems.length == 3); // should be three components

 		if (result)
 		{
 			var day = parseInt(elems[0]);
  			var month = parseInt(elems[1]);
 			var year = parseInt(elems[2]);
			result =  validInt(elems[1]) && (day > 0) && (day < 32)&&
					 allDigits(elems[0]) && (month > 0) && (month < 13) &&
					 allDigits(elems[2]) &&  (elems[2].length == 4);//(elems[2].length == 2) ||
 		}

  		if (!result)
 		{
 			alert('Please enter a date in the format DD/MM/YYYY for the "' + fieldLabel +'" field.');
			//formField.focus();
		}
	}

	return result;
}


function isUrl(elementname,elementval)
{
  var element = elementname;
  var val = elementval;

    if(element.indexOf('.', 0) == -1)
        return "Invalid URL"+"entered in "+val+" field";
    if (element.indexOf('http://') == -1)
    {
        if (element.indexOf('HTTP://') == -1)
          if (element.indexOf('ftp://') == -1)
            if(element.indexOf('FTP://') == -1)
              if(element.indexOf('https://') == -1)
                if(element.indexOf('HTTPS://') == -1)
                  return "URL"+"entered in"+val+"must start with http:// or ftp://";
    }
    return "+OK";
}


function validateForm(theForm)
{
	// Customize these calls for your form

	// Start ------->
	if (!validRequired(theForm.fullname,"Name"))
		return false;

	if (!validEmail(theForm.email,"Email Address",true))
		return false;

	if (!validDate(theForm.available,"Date Available",true))
		return false;

	if (!validNum(theForm.yearsexperience,"Years Experience",true))
		return false;
	// <--------- End

	return true;
}

function validateDMY(defvalue,fname)
{
       var bFlag=true;
       var datearray=defvalue.split("/");
       var day=datearray[0];
       var month=datearray[1];
       var year=datearray[2];
         if(parseInt(day) > 31)
          {
           alert("Invalid date entered in "+fname+" field");
           bFlag=false;
          }

          if(bFlag)
          {
             if(parseInt(month) > 12)
              {
               alert("Invalid date entered in "+fname+" field");
               bFlag=false;
              }
          }

          if(bFlag)
           {
            if(year.length != 4)
             {
               if(year.length != 2)
               {
                 alert("Invalid date entered in "+fname+" field");
                 bFlag=false;
               }
             }
           }
          return bFlag;

}
function validateMDY(defvalue,fname)
{
       var bFlag=true;
       var datearray=defvalue.split("/");
       var month=datearray[0];
       var day=datearray[1];
       var year=datearray[2];
         if(parseInt(day) > 31)
          {
           alert("Invalid date entered in "+fname+" field");
           bFlag=false;
          }

          if(bFlag)
          {
             if(parseInt(month) > 12)
              {
               alert("Invalid date entered in "+fname+" field");
               bFlag=false;
              }
          }

          if(bFlag)
           {
            if(year.length != 4)
             {
               if(year.length != 2)
               {
                 alert("Invalid date entered in "+fname+" field");
                 bFlag=false;
               }
             }

           }
          return bFlag;

}