function isBlank(s) { 

 var len = s.length

 var i

 for (i=0;i<len;i++) {

  if(s.charAt(i)!=" ") 

  return false

 }

return true



}

function fieldFocus(fieldName) {

  fieldName.focus();

  fieldName.select();

}



function validate(fieldName,fieldValue) {

  if(isBlank(fieldValue)) {

  fieldFocus(fieldName);

  return false

 }

return true

}



function replaceStr(fieldValue){

       

	var i = 0;

	var val2 = "";

	for(i=0;i<fieldValue.length;i++)

	{

		var val = fieldValue.substring(i,i+1);

		if(val == "'" || val=='92')	{

			val2+="\\"+val;

       		 }

		else{



			val2+=val;

                } 

	}



   return val2;



}

function rplaceand(fieldValue){

        var rep="&";

	var i = 0;

	var val2 = "";

	for(i=0;i<fieldValue.length;i++)

	{

		var val = fieldValue.substring(i,i+1);

		if(val=="&")	{

			val2+=" and ";

       		 }

		else{



			val2+=val;

                } 

	}

	

   return val2;



}





function validateId(fieldName,fieldValue) {

 var validan="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_";

 var string=fieldValue;

 var length=string.length;

 if(length>16 || length<4){

   return false;

 }

 if(isBlank(fieldValue)) {

    fieldFocus(fieldName);

    return false

 }

 for(i=0;i<=length;i++)

 {

 var substring=string.substr(i,1);

 if(validan.indexOf(substring)==-1 || fieldValue==null||fieldValue.length==0)

 {

  fieldFocus(fieldName);

  return false;

 }

  

 }

 return true;

}





function validateNum(fieldName,fieldValue) {

 var validn="0123456789()-+ ";

 var string=fieldValue;

 var length=string.length;

 if(isBlank(fieldValue)) {

 fieldFocus(fieldName);

 return false

 }

 for(i=0;i<=length;i++)

 {

 var substring=string.substr(i,1);

 if(validn.indexOf(substring)==-1 || (fieldValue==null||fieldValue.length==0))

 {

  fieldFocus(fieldName);

  return false;

 }

 }

 return true

 }



// Email address must be of form a@b.c -- in other words:

// * there must be at least one character before the @

// * there must be at least one character before and after the .

// * the characters @ and . are both required



function validateMail(fieldName,fieldValue) {

 var string=fieldValue;

 var length=string.length;

 if(isBlank(fieldValue)) {

 fieldFocus(fieldName);

 return false

 }

    // there must be >= 1 character before @, so we

    // start looking at character position 1 

    // (i.e. second character)

    var i = 1;

    var sLength = fieldValue.length;



    // look for @

    while ((i < sLength) && (fieldValue.charAt(i) != "@"))

    { i++

    }



    if ((i >= sLength) || (fieldValue.charAt(i) != "@"))

      { 

        fieldFocus(fieldName);

        return false;

      }

    else i += 2;



    // look for .

    while ((i < sLength) && (fieldValue.charAt(i) != "."))

    { i++

    }



    // there must be at least one character after the .

    if ((i >= sLength - 1) || (fieldValue.charAt(i) != "."))

      { fieldFocus(fieldName);

        return false;

      }

    else return true;

}



function validateName(fieldName,fieldValue){

      if(isBlank(fieldValue)) {

          fieldFocus(fieldName);

          return false

        }



      var validname="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz ' . ";

        var theLength=fieldValue.length;

            	

	for(var i=0;i<theLength;i++){

		var theChar=fieldValue.substring(i,i+1);

		if(validname.indexOf(theChar)==-1 ){

  			fieldFocus(fieldName);

  			return false;

 		}

		

	}

     return true;

}



function validateAge(fieldName,fieldValue){

	if(isNaN(fieldValue) || fieldValue>100 || fieldValue.length==0){

		fieldFocus(fieldName);

  		return false;

       } 

  return true;

}

function validatePin(fieldName,fieldValue){

/*	if(isNaN(fieldValue) || fieldValue.length==0 || fieldValue.length<6){

		fieldFocus(fieldName);

  		return false;

       } 

   return true;

*/

var theLength=fieldValue.length;

if(theLength<6 || theLength>7){

fieldFocus(fieldName);

return false;



}

var validpin="0123456789 ";

for(var i=0;i<theLength;i++){

 var theChar=fieldValue.substring(i,i+1);

  if(validpin.indexOf(theChar)==-1 ){

  			fieldFocus(fieldName);

  			return false;

 		}



}

return true;

}



var leapmonth=new Array("01","02","03","04","05","06","07","08","09","10","11","12");

var leapdays=new Array("31","29","31","30","31","30","31","31","30","31","30","31");

var nonleapmonth=new Array("01","02","03","04","05","06","07","08","09","10","11","12");

var nonleapdays=new Array("31","28","31","30","31","30","31","31","30","31","30","31");



function validDOB(days,months,year){

if(days.length<2){



       days="0"+days;

  }



if(months.length<2){



       months="0"+months;

  }



if(isNaN(days) || isNaN(months) || isNaN(year)){

      return false;

}



else if(year<1900 || year>2002){

    return false;

}

else{



	if(year%4==0 ||year%100==0){

                 

 		for(var i=0;i<leapmonth.length;i++){

      			 if(leapmonth[i]==months){

            			if(days<=leapdays[i] && days>0){

                			 return true;

                                    

				

				} 

                                 

                                                                 

      			}  

                         

		} 

           return false;               

          

 

	}



        else {

		for(var i=0;i<nonleapmonth.length;i++){

      			if(months==nonleapmonth[i]){

            			if(days<=nonleapdays[i] && days>0){

					return true;

				    

                                } 

                                        

      			}  



		}  

                 return false;               

               

		



        }

 

  } 

}