ÿþ/* ************************************************************************* 

Function trim

 ************************************************************************* */

function trim(name)

{

 var thelength =name.length;

 var index1=0;

 var index2=thelength -1;

   if (thelength > 0)

   {

       while ((index1 < thelength) &&(name.charAt(index1)==" "))	  	

	{

	index1++;

	}

        if (index1 == thelength) return "";

        else

           while ( (index2 > index1) &&(name.charAt(index2)==" ")) 	

	index2--;



        return name.substring(index1,index2 +1);

    }

	return "";

}



/* ************************************************************************* 

Function checkNumber

 ************************************************************************* */

function checkNumber(checkStr)

{



  if (checkStr == "")

  {

    return false;

  }



  var checkOK = "0123456789";

  var allValid = true;

  var validGroups = true;

  var decPoints = 0;

  var allNum = "";

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

  {

    ch = checkStr.charAt(i);

    for (j = 0;  j < checkOK.length;  j++)

      if (ch == checkOK.charAt(j))

        break;

    if (j == checkOK.length)

    {

      allValid = false;

      break;

    }

    allNum += ch;

  }

  if (!allValid)

  {

    return false;

  }

  return (true);

}



/* ************************************************************************* 

Function checkEmail

 ************************************************************************* */

function checkEmail(name)

{

   var email=name;	

   var reg = new RegExp("^[A-Za-z0-9\._-]+@([A-Za-z][A-Za-z0-9-]{1,62})(\.[A-Za-z][A-Za-z0-9-]{1,62})+$");  

   return reg.test(email);

}



/* ************************************************************************* 

Function CompareDate

 ************************************************************************* */

function CompareDate(year1,month1,day1,year2,month2,day2){

	if (year1 > year2){	

		return false;

	} else if (year1==year2) {

		if (month1 > month2){

			return false;

		} else if (month1==month2) {

			if (day1 > day2) {

				return false;

			} else if (day1 == day2) {

				return false;

			} else {					

				return true;

			}			

		} else {

			return true;

		}

	} else {

		return true;

	}

}	



/* ************************************************************************* 

Function checkDate

 ************************************************************************* */

function checkDate(){

	var datevalue1=document.dk.from.value;

	var datevalue2=document.dk.to.value;

	var reg = new RegExp("^[0-9]{1,2}\/[0-9]{1,2}\/[0-9]{4}$");



	if (reg.test(datevalue1)) {

		var index = datevalue1.indexOf("/")

		var lastindex = datevalue1.lastIndexOf("/")

		var day1=datevalue1.substring(index + 1,lastindex);

		var month1=datevalue1.substring(0,index);				

		var year1=datevalue1.substring(lastindex + 1,datevalue1.length);			

	} else return false;

	

	if (reg.test(datevalue2)) {

		index = datevalue2.indexOf("/")

		lastindex = datevalue2.lastIndexOf("/")

		var day2=datevalue2.substring(index + 1,lastindex);

		var month2=datevalue2.substring(0,index);				

		var year2=datevalue2.substring(lastindex + 1,datevalue2.length);	

		

	} else return false;

		

	if (!CompareDate(year1,month1,day1,year2,month2,day2)){

		return false;

	} else 	

		return true;

}



/* ************************************************************************* 

Function ClassNew

 ************************************************************************* */

function ClassNew(obj, new_style) {

		obj.className = new_style;

	}



function OpenLink(URL) 	

{

		if (URL!= "") window.open(URL);	

		return true;

}



function Search_Data(){

	

  var fm=document.Search;

  if (fm.Search.value == 'search...') {

		fm.Search.focus();

		return false;

	}	  

  if (fm.Search.value == '') {

		alert('Vui long nhap noi dung can tim !');

		fm.Search.focus();

		return false;

	}	

  fm.action="Main.asp?fID_P=3";	

  fm.submit();

}	

function kiemtraso(str){

	

	var temp

	

	var j = 1

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

		temp = str.substring(i,j) ;

	    if ((temp < '0') || (temp > '9'))  

			return false;

	     j=j+1;		

	}

	return true;			

		

}

function kiemtrangay(DateStr){



var ch;



var length = DateStr.length    ;

    //Check for Str date Size.

   

   if (length > 10)

      	 return false;  

   

   var j = 1;

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

   {

   		ch = DateStr.substring(i,j);

   		if((ch >= 'A') &&  (ch <= 'z'))

   			return false;

   		if((ch < '0') || (ch > '9'))

   		{

   			if((ch == '/') && (i!=2) && (i!=5))   

           			 	return false;

           			 if(ch != '/')

            				return false; 	

       		 }

   		

    

    	j = j + 1;

   }	

   

   ch = DateStr.substring(0, 2)

   if((ch > 31) || (ch <01))   

        return false;

        

   ch = DateStr.substring(3, 5)

   if((ch < 01) || (ch > 12))

   		return false;

   

   ch = DateStr.substring(6, 10)

   if((ch < 1800) || (ch > 9999))

   		return false;

 

 return true;

}



function kiemtrathang(DateStr){



var ch;



var length = DateStr.length    ;

    //Check for Str date Size.

   

   if (length > 7)

      	 return false;  

   

   var j = 1;

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

   {

   		ch = DateStr.substring(i,j);

   		j = j + 1;

   		

   		if((ch >= 'A') && (ch <= 'z'))

   			return false;

   		

   		if((ch < '0') || (ch > '9'))

   		{

   			if((ch == '/') && (i!=2))   

            				return false;

           			 if(ch != '/')

            			return false; 	

       		 }

     	

   }	

   

   ch = DateStr.substring(0, 2)

   if((ch > 12) || (ch <01))   

        return false;

   ch = DateStr.substring(3, 7)

   if((ch < 1800) || (ch > 9999))

   		return false;

 return true;

}