/* 

Purpose : To check if the value of field is null or not.

Return Value : False if value is empty else True

*/			 



function isEmpty(field,label)

{

 	if(Trim(field.value) == "")

	{

		 label = label +   "  cannot be left blank."

	     alert(label)

	     field.focus()

	     return false;

	}

	else

          return true;

    	       

}



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



/* 

Purpose : To check the format of each type of name.For Eg: FirstName,LastName etc.

Return Value : False if value is empty else True

*/			 



function NameChk(field,label,boolEmpty,boolNum,splChar)

{

	if(boolEmpty == 1)

	{

		if (isEmpty(field,label)==false)

			return false;			

	

	}

	else

	{

	if( !field.value)

		return true;

	}

					

   	var valid = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; 

	if(boolNum == 0)

	{

		valid = valid + "0123456789"

	}   	

	

	valid = valid + splChar

    var input = field.value;

    var length = input.length;

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

	{

		var sub = input.substring(i,i+1);

		if(valid.indexOf(sub)==-1)

	   	{

	   		 label = "Please enter the valid  " + label + "  before submitting the form"

			 alert(label);

             field.focus();

             return false;		

	     }	

	   

	 }

}





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



/* 

Purpose : To check the format for valid Email address.

Return Value : False if value is empty else True

*/			 



function isEmail(field,label,boolEmpty) 

{ 

	

	if(boolEmpty == 1)

	{

		if (isEmpty(field,label)==false)

			return false;			

	

	}

	else

	{

	if(!field.value)

		return true;

	}

	

	

	if (field.value.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z]+$/) != -1)

		return true;

	else

	{	

		label = "Please enter the valid  " + label 

		alert(label);

        field.focus();

        return false;

     }   

}



 

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

 

 function isWebAddress(field,label,boolEmpty) 

{ 

	

	if(boolEmpty == 1)

	{

		if (isEmpty(field,label)==false)

			return false;			

	

	}

	else

	{

	if(!field.value)

		return true;

	}

	

	if(field.value.search(/^([htpw\.\/:])+(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/)!=-1)

		return true;

	else

	{	

		label = "Please enter the valid  " + label 

		alert(label);

        field.focus();

        return false;

     }   

}



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



/* 

Purpose : To check the format for valid Password.

Return Value : False if password is not in correct format else True.

*/			 



function chkPass(field,label,minChar)

{  

     if (isEmpty(field,label)==true)

	 {

         	var valid = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" 

   	        var input = field.value;

    	    var length = input.length;

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

	        {

		         var sub = input.substring(i,i+1);

		         if(valid.indexOf(sub)==-1)

	   	         {

	   				  label = "Please enter the valid  " + label 

			          alert(label);

                      field.focus();

                      return false;		

	             }	

	   

	        }

		   



		   if(field.value.length < minChar)

			{

				alert( "Password must be at least " + minChar +  " characters.");

				field.focus();

				return false;

			}

	}

	

	else

	{

		return false;

	}	

	

return true;

}		



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



/* 

Purpose : To check the equality of two passwords(original & it's confirmation) entered by the user.

Return Value : False if field & field1 value are different else true.

*/			 



function chkPassConfirm(field,field1)

{  

    if(field.value != field1.value)

    {

		alert("Passwords entered do not match. Enter Again.");

		field.value=""

                field1.value=""

		field.focus();

     	        return false;

     }	

		

	

return true;

}		



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



/*

function chkDate(field,label)

Purpose : To check the validity of date in mm/dd/yyyy format.

Return Value : False if date is valid else true.

*/





function chkDate(field1,field2,field3,label)

{

	var date1;

	date1=field2.value+"/"+field1.value+"/"+field3.value;

	if (field3.value==""||field2.value==""||field1.value=="")

	{

		alert("Please enter date, month and year to continue");

		field3.focus();

		return false;

	}

	if ((date1==null) || (date1==""))

	{ 

		alert("Please enter valid "  + label);

		field1.focus();

		return false;

	}



	if (date1.length>10)

	{

      alert( "PLEASE FILL " + label + " AS PER FORMAT...CHECK LENGTH  mm/dd/yyyy");

      field1.focus();

      return false;

	}

		

	var i,cnt=0,cnt1=0;

	var bag = "0123456789/";

    for(i=0;i<date1.length;i++)

    {

		var c = date1.charAt(i);

		if (bag.indexOf(c) == -1)

        {

	         alert( label + " may only contain the following characters: 0123456789/" );

		     field3.focus();

			 return false;

		}

		

		if(c=="/")

		{

			cnt++;

		}

		if(cnt > 2 )

		{

			alert("Please check the format for " + label + " DD/MM/YYYY");

		    field1.focus();

			return false;

    	}

	}



	//CHECK MONTH, DAY AND YEAR FOR DATE1



	var in1,m,in2,m2,d2;

	in1=(date1.indexOf("/"));

	in2=(date1.lastIndexOf("/"));

	y1 =parseInt(date1.substring(in2+1));

	monthlen=date1.substring(0,in1);

	daylen=date1.substring(in1+1,in2);

	m=parseInt(date1.substring(0,in1),10);

	d=parseInt(date1.substring(in1+1,in2),10);

	

	

	if((m<1)||(m>12))

	{

		alert("VALUE OF MONTH CANNOT BE GREATER THAN 12 ");

		field2.focus();

		return false;

	}



	if ((monthlen.length) < 2)

	{

		alert("Please fill the correct format for " + label + " DD/MM/YYYY");

		field2.focus();

		return false;

	}	

	if ((daylen.length) < 2)

	{

		alert("Please fill the correct format for " + label + " DD/MM/YYYY");

		field1.focus();

		return false;

	}	

	if((d<1)||(d>31))

	{

		alert("VALUE OF DAY CANNOT BE GREATER THAN 31 ");

		field1.focus();

		return false;

	}

	

	if((m==2) && (d>29))

    {

    	alert("FEBRUARY CANNOT HAVE DAYS MORE THAN 29");

		field2.focus();

		return false;

	}



	// february, leap year



	if ((m==2) && (d>28))

	{

			var Check1 = parseFloat(y1);

			for (var i = 0; i < y1.length; i++) 

			{

				var sLetterCheck1 = y1.substring(i, i+1);

					if (sLetterCheck1 < "0" || sLetterCheck1 > "9") {

					alert("Enter a valid year.");

					field2.focus();

					field2.select();

					return;

			 } 

	}       

				checkYear(y1);

	if (!checkYear(y1))

	{

		alert("Year is not a leap year So please enter valid year");

		field3.focus();

		return false;

	}

		return true;

	}	

			

	if ((m==4 || m==6 || m==9 || m==11) && (d>30))

	{

		alert("INVALID VALUE OF DAY FOR DATE");

		field1.focus();

		return false;

	}

	

	if((y1<1900)||(y1>2100))

	{

		alert("ENTER A VALID YEAR FOR DATE");

		field3.focus();

		return false;

	}	

	 

	return true;

}





function checkYear(y1) 

{ 

	return (((y1 % 4 == 0) && (y1 % 100 != 0)) || (y1 % 400 == 0)) ? 1 : 0;

}



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



/*

function validAddress(field,label,boolEmpty)

Purpose : To check the valid address.

Return Value : False if date is invalid else True.

*/



function validAddress(field,label,boolEmpty)

{

	if(boolEmpty == 1)

	{

		if (isEmpty(field,label)==false)

			return false;			

	

	} 

	else

	{

	if( !field.value)

		return true;

	}



	   	var valid = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-()'',.#/ "  

        var input = field.value;

   	    var length = input.length;

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

        {

	         var sub=input.substring(i,i+1);

	         if(valid.indexOf(sub)==-1)

   	         {

	   	         label = "Please enter the valid " + label + " before submitting the form"

		         alert(label);

                 field.focus();

                 return false;		

	         }	

	   

	    }

	

	return true;       

}



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



/*

function validPhone(field,label,boolEmpty)

Purpose : To check the valid address.

Return Value : False if date is invalid else True.

*/





function validPhone(field,label,boolEmpty)

{

	

	if(boolEmpty == 1)

	{

		if (isEmpty(field,label)==false)

			return false;				

	}

	else

	{

	if(!field.value)

		return true;

	}



		var valid = "0123456789- " 

     	var input = field.value;

   	    var length = input.length;

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

        {

	         var sub=input.substring(i,i+1);

	         if(valid.indexOf(sub)==-1)

   	         {

	 	         label = "Please enter the valid " + label + " before submitting the form"

	             alert(label);

                 field.focus();

                 return false;		

	          }	

	   

	    }

	         

	return true;

}



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



/* 

function loginName(field,label,minChar)

Purpose : To check the format of login name.

Return Value : False if value is empty or in invalid format else True

*/			 



function loginName(field,label,minChar)

{



	if (isEmpty(field,label)==true)

	{

		var valid = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_";

		var input = field.value;

		var length = input.length;

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

			{

				var sub = input.substring(i,i+1);

				if(valid.indexOf(sub)==-1)

		   		{

		   			 label = "Please enter the valid  " + label + "  before submitting the form";

					alert(label);

					field.focus();

					return false;		

				}	

			 }



			if (!isCharsInBag( field.value.charAt(length - 1), "QWERTYUIOPASDFGHJKLZXCVBNMabcdefghijklmnopqrstuvwxyz0123456789"))

			{

				alert( Label + " must end in an alphanumeric character.");

				field.focus();

				return false;

			}

    

			if (!isCharsInBag( field.value.charAt(0), "QWERTYUIOPASDFGHJKLZXCVBNMabcdefghijklmnopqrstuvwxyz0123456789"))

			{

				alert( label + " name must start with an alphanumeric character.");

				field.focus();

				return false;

			}

    

			if (field.value.length < minChar)

			{

				alert( label +  " must be " + minChar + " or more characters." );

				field.focus();

				return false;

			}

	}

	else

	{

		return false;	

	}	

	return true;

}    



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



/* 

function isCharsInBag (s, bag)

Purpose : To check existence of a string or character in a specifiedstring in s.

Return Value : False if any character is not in the string

*/			 



function isCharsInBag (s, bag)

{  

   var i;

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

  {   

		var c = s.charAt(i);

        if (bag.indexOf(c) == -1) 

			return false;

   }

   return true;

}



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



/* 

Purpose : To check the value of fields which can have only character values.

Return Value : False if value conatins anything else characters.

*/			 



function ValidChar(field,label)

{	

	 if (isEmpty(field,label)==true)           //if the fields are filled,then enter into braces.

	 {

         	var valid = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ. " 

   	        var input = field.value;

    	    var length = input.length;

    	    var i;

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

	        {

		         var sub = input.substring(i,i+1);

		         if(valid.indexOf(sub)==-1)

	   	         {

	   				  label = "Please enter the valid  " + label + "  before submitting the form"

			          alert(label);

                      field.focus();

                      return false;		

	             }	

	   

	        }

		}

		else

		{

			return false;

		}	

	  

	  return true;

}



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



/* 

function chkSelect(field, label)

Purpose : To check the value of the combo if first value of it is select.

Return Value : False if value conatins anything else characters.

*/			 





function chkSelect(field,label)

{

	//alert(field.selectedindex)

	if(field.selectedIndex == 0)

	{

		alert("Select a value from " + label);

		field.focus();

		return false;

	}

	else

	{

		return true;

	}

}			



/*-------------------------------------------------------------------------------------------------------------------------------*/



/* 

function NumChk(field,label,boolEmpty)

Purpose : To check the value of fields where numeric data is allowed.

Return Value : False if value is non numeric else True

*/			 





function NumChk(field,label,boolEmpty)

{

	if(boolEmpty == 1)

	{

		if (isEmpty(field,label)==false)

			return false;			

	

	}

	else

	{

	if( !field.value)

		return true;

	}

					

   	var valid = "0123456789"; 

	var input = field.value;

    var length = input.length;

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

	{

		var sub = input.substring(i,i+1);

		if(valid.indexOf(sub)==-1)

	   	{

	   		 label = label + "  can conatin only numeric data"

			 alert(label);

             field.focus();

             return false;		

	     }	

	   

	 }

}





//======================================================================



/*

Purpose : To check the validity of date in mm/dd/yyyy format.

Return Value : False if date is valid else true.

*/





function chkDateEnhance(field,field1,field2,label)

{

	var date1;

	datetocheck = field1.options(field1.selectedIndex).value + "/" + field.options(field.selectedIndex).value + "/" + field2.options(field2.selectedIndex).value

	date1=datetocheck;

	if ((field1.selectedIndex==0) || (field.selectedIndex==0) || (field2.selectedIndex==0))

	{

	   	alert( "Please select date properly to continue");

	      	field.focus();

      		return false;

	}

	if ((date1.length>10))

	{

      alert( "PLEASE FILL " + label + " AS PER FORMAT...CHECK LENGTH  mm/dd/yyyy");

      field.focus();

      return false;

	}		

	var i,cnt=0,cnt1=0;

	var bag = "0123456789/";

    for(i=0;i<date1.length;i++)

    {

		var c = date1.charAt(i);

		if (bag.indexOf(c) == -1)

        {

	         alert( label + " may only contain the following characters: 0123456789/" );

		     field.focus();

			 return false;

		}

		

		if(c=="/")

		{

			cnt++;

		}

		if(cnt > 2 )

		{

			alert("Please check the format for " + label);

		    field.focus();

			return false;

    	}

	}



	//CHECK MONTH, DAY AND YEAR FOR DATE1



	var in1,m,in2,m2,d2;

	in1=(date1.indexOf("/"));

	in2=(date1.lastIndexOf("/"));

	y1 =parseInt(date1.substring(in2+1));

	monthlen=date1.substring(0,in1);

	daylen=date1.substring(in1+1,in2);

	m=parseInt(date1.substring(0,in1),10);

	d=parseInt(date1.substring(in1+1,in2),10);

	

	

	if((m<1)||(m>12))

	{

		alert("VALUE OF MONTH CANNOT BE GREATER THAN 12 ");

		field.focus();

		return false;

	}



	if ((monthlen.length) < 2)

	{

		alert("Please fill the correct format for " + label);

		field.focus();

		return false;

	}	

	if ((daylen.length) < 2)

	{

		alert("Please fill the correct format for " + label);

		field.focus();

		return false;

	}	

	if((d<1)||(d>31))

	{

		alert("VALUE OF DAY CANNOT BE GREATER THAN 31 ");

		field.focus();

		return false;

	}

	

	if((m==2) && (d>29))

    {

    	alert("FEBRUARY CANNOT HAVE DAYS MORE THAN 29");

		field.focus();

		return false;

	}



	// february, leap year



	if ((m==2) && (d>28))

	{

			var Check1 = parseFloat(y1);

			for (var i = 0; i < y1.length; i++) 

			{

				var sLetterCheck1 = y1.substring(i, i+1);

					if (sLetterCheck1 < "0" || sLetterCheck1 > "9") {

					alert("Enter a valid year.");

					field.focus();

					field.select();

					return;

			 } 

	}       

				checkYear(y1);

	if (!checkYear(y1))

	{

		alert("Year is not a leap year So please enter valid year");

		field.focus();

		return false;

	}

		return true;

	}	

			

	if ((m==4 || m==6 || m==9 || m==11) && (d>30))

	{

		alert("INVALID VALUE OF DAY FOR DATE");

		field.focus();

		return false;

	}

	

	if((y1<1900)||(y1>2100))

	{

		alert("ENTER A VALID YEAR FOR DATE");

		field.focus();

		return false;

	}	

	 

	return true;

}

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



/* 

Purpose : To trim the spaces of string.

Return Value : Trimmed string

*/			 



function Trim( str )

{

	var resultStr = "";

	

	resultStr = TrimLeft(str);

	resultStr = TrimRight(resultStr);

	

	return resultStr;

}



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



/* 

function TrimLeft(str)

Purpose : To trim the spaces on the left of string.

Return Value : String with spaces trimmed from left

*/			 



function TrimLeft( str ) 

{

	var resultStr = "";

	var i = len = 0;



	if (str+"" == "undefined" || str == null)	

		return null;



	str += "";



	if (str.length == 0) 

		resultStr = "";

	else {	

	  	len = str.length - 1;

		len = str.length;

		

  		while ((i <= len) && (str.charAt(i) == " "))

			i++;

  		resultStr = str.substring(i, len);

  	}



  	return resultStr;

}



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



/* 

function TrimRight(str)

Purpose : To trim the spaces on the right of string.

Return Value : String with spaces trimmed from right

*/			 





function TrimRight( str ) 

{

	var resultStr = "";

	var i = 0;

	if (str+"" == "undefined" || str == null)	

		return null;



	str += "";

	

	if (str.length == 0) 

		resultStr = "";

	else {

  		i = str.length - 1;

  		while ((i >= 0) && (str.charAt(i) == " "))

 			i--;

 			

  		resultStr = str.substring(0, i + 1);

  	}

  	

  	return resultStr;  	

}





function onlyNumeric()

{

 if((event.keyCode>=48 && event.keyCode<=57) )

 {

 	return true;

 }

 else

{		

  event.keyCode=0;  

  return false;

}

}

//======================================================================