ÿþfunction get_xmlhttp() //Hàm này 
à t¡o ra 
Ñi t°
ãng XMLHTTPRequest ma cac trinh duyet ho tro trong k÷ thåât ajax.

{  

      xml=null;

        try

        {

        	xml=new XMLHttpRequest();

	        return xml;

        }

        catch(err)

        {

        	try

		{

			xml=new ActiveXObject("Microsoft.XMLHTTP");

			return xml;

		}



	catch(err1)

		

		{

			try

				{

					xml= new ActiveXObject("Msxml2.XMLHTTP");

			 		return xml;

				}



			catch(err2)



				{

					alert('Browser can not initialize XMLHttpRequest object');

					return xml;

				}



		}		

        }

       

   return xml;

} 



function process_ajax_data(data_gui,url_xuly,id_phantu_bieudien_dulieu) //Hàm này 
à l¥y dï liÇu të 
Ñi t°
ãng XMLHTTP và hiÃn thË trên trình duyÇt.

{

        xmlresult=get_xmlhttp();	

        if(xmlresult != null)

        {

            url=url_xuly;

            xmlresult.open("POST",url,true);// Dùng kiÃu gíi data theo ph°
¡
ng théc post 
à an toàn và gíi nhiÁu data mÙt lúc.	

	        xmlresult.setRequestHeader('Content-type', 'application/x-www-form-urlencoded;charset=UTF-8;');  

            xmlresult.onreadystatechange = function ()

                {

                    if (xmlresult.readyState == 4 && xmlresult.status == 200) // KiÃm tra co data tra ve va khong co loi.

                    {                        

                        document.getElementById(id_phantu_bieudien_dulieu).innerHTML=xmlresult.responseText;//Trình diÅn data tr£ vÁ t¡i client trên mÙt ph§n tí nh°
 th» <div> hay <span>... có id 
°
ãc truyÁn vào.



		                //escape(data gíi theo url c§n mã hóa);---->Ham nay ma hoa cac ky tu va tra ve chuoi theo kieu giong nhu url de gui di cùng url.

                    } 

                }

           xmlresult.send(data_gui);//Hàm gíi data 
i.

        }

        //else

            //alert('Your browser need to support Ajax to use this page best.');

}



// process press enterkey on textbox

function press_enterkeyLong(e,buttonid)

{  

   var evt = e ? e : window.event;    

   var bt = document.getElementById(buttonid);  

   if (bt)

      {   

       if (evt.keyCode == 13)

          {     

            bt.click();   

            return false;     

          }   

      } 

}



//for paging _old

function idpageLong_old(keystr,valuestr)

 	 {

 	   var QString= unescape(location.search);

	   var vitri=QString.indexOf(keystr)

	 	 if (vitri!=-1) QString=QString.substring(0,vitri-1);

	 	 if (QString!='') QString+='&';

	 	 else QString='?'+QString;

 	   location.href=QString+keystr+'='+valuestr;

 	 }

//for fix images on page

var maxwidthimgsneedfixL;

var maxheightimgsneedixL;

var nameimgsneedfixL;//chi truyen vao cho ham fix cac images tren trang mot phan ten giong nhau cua thuoc tinh name cho all images

function starfiximagesLong(maxwidth,maxheight,nameimg9letter)

{

    maxwidthimgsneedfixL = maxwidth;

    maxheightimgsneedixL = maxheight;

    nameimgsneedfixL = nameimg9letter;

    fiximagesLong();    

}

function fiximagesLong() 

{

    var w;

    var h;

    var wGoc;

    var hGoc;

    wGoc = maxwidthimgsneedfixL;

    hGoc = maxheightimgsneedixL;

    var pix = document.images;

    var i;

    var ratio;    

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

    {

            var imId=pix[i].name;

            if (imId.substring(0,9) == nameimgsneedfixL)

                {              

                    pix[i].removeAttribute("width");

                    pix[i].removeAttribute("height");            

                    w=pix[i].width;

                    h=pix[i].height;              

                    if(h/w == hGoc/wGoc)

                        {

                            pix[i].width=wGoc;

                            pix[i].height=hGoc;

                        }

                          else

                        {

                                  if(h >= w && h >= hGoc)

                                    {

                                      ratio = h/w;  

                                      pix[i].width=(hGoc/ratio);

                                      pix[i].height=hGoc;

                                    }

                                   if(h <w && h >= hGoc)

                                    {

                                        ratio = (w/h);

                                        pix[i].width=wGoc;

                                        pix[i].height=wGoc/ratio;                                     

                                    } 

                                    if(h < w && w > wGoc)

                                    {

                                         ratio = (w/h);

                                        pix[i].width=wGoc;

                                        pix[i].height=wGoc/ratio;

                                    }



                        }        

            }

     }

       timerunagainfixL = setTimeout('fiximagesLong()',2000);

       if(timerunagainfixL !=null)

       {

         setTimeout('clearTimeout(timerunagainfixL);timerunagainfixL = null',5000);

       }

       

}

// end fiximage



//Ham chuyen doi ngon ngu

function convert_languages(str)

{

 	   var QString= unescape(location.search);

	   var vitri=QString.indexOf("lang")

	    if (vitri!=-1) QString=QString.substring(0,vitri-1);

	 	if (QString!='') QString+='&';

	 	else QString='?'+QString;

 	   location.href=QString+'lang='+str;

}

 	 

 //Ham mo full window moi	

function open_fullnewwindow(url,width,height)

{

        var top,left,widthW,heightW;

        widthW = width;

        heightW = height;

        if(widthW >= window.screen.availWidth)

        {

            widthW=(window.screen.availWidth-8);           

            left = 0;

		}

		else

		{

		   left = window.screen.availWidth - widthW - Math.round(((window.screen.availWidth - widthW)/2)); 

		}

		if(heightW >= window.screen.availHeight)

        {

		    heightW =(window.screen.availHeight-106);

		    top = 0;

        }

		else

		{

		   top = window.screen.availHeight - heightW - Math.round(((window.screen.availHeight - heightW)/2));

		}			

		var winDef = 'status=yes,resizable=yes,scrollbars=yes,toolbar=yes,location=yes,menubar=yes,directories=no,titlebar=yes,top='+top+',left='+left+',height=' +heightW+' ,width='+widthW;		

		var newwin =window.open(url, '_blank', winDef);

}

// ham mo window gioi han

function open_missingnewwindow(url,width,height)

{

        var top,left,widthW,heightW;

        widthW = width;

        heightW = height;

        if(widthW >= window.screen.availWidth)

        {

            widthW=(window.screen.availWidth-8);           

            left = 0;

		}

		else

		{

		   left = window.screen.availWidth - widthW - Math.round(((window.screen.availWidth - widthW)/2)); 

		}

		if(heightW >= window.screen.availHeight)

        {

		    heightW =(window.screen.availHeight-106);

		    top = 0;

        }

		else

		{

		   top = window.screen.availHeight - heightW - Math.round(((window.screen.availHeight - heightW)/2));

		}			

		var winDef = 'status=no,resizable=no,scrollbars=no,toolbar=no,location=no,menubar=no,directories=no,titlebar=no,top='+top+',left='+left+',height=' +heightW+' ,width='+widthW;		

		var newwin =window.open(url, '_blank', winDef);

}

// for paging_new

function idpageLong(keystr,valuestr)

{

 	var QString = unescape(location.search);	

	var QString1 = QString.substring(1,QString.length);	

    var mangthamso = new Array();

	var chuoidabiendoi = '?' ;

	var i = 0;

   if( QString1 == '' )

    {

	    chuoidabiendoi += keystr +'='+ valuestr ;

    }

    else

    {

	  mangthamso = QString1.split( '&' );	 

	  var vitriphantu = -1 ;

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

		{

			if(vitriphantu == -1)

			{

				vitriphantu = mangthamso[i].substring( 0,(keystr.length)).indexOf(keystr);

			}

			if(mangthamso[i].substring( 0,(keystr.length) ) == keystr)

			{

				mangthamso[i] =  keystr + '=' + valuestr ;			

			}			

			if (i == 0 )

			{

				chuoidabiendoi += mangthamso[i];

			}

			else

			{

				chuoidabiendoi  +='&'+ mangthamso[i]  ;

			}

		}		

		if( vitriphantu == -1)

		{

			chuoidabiendoi  +='&' +keystr + '=' + valuestr ;

		}

    }	  

 	   location.href = chuoidabiendoi;

 }

//lay thoi gian hien tai

function getcurrentdatelong(en_or_vn,containerid,long_or_sort_onlynumber)

{

 var newdate = new Date();

 var weekdays = newdate.getDay(); 

 var monthdays = newdate.getDate();

 var month = newdate.getMonth();

 var year = newdate.getFullYear();

 var namemonth;

 var nameweekday;

 var container = document.getElementById(containerid);

        if(en_or_vn == 'en')

        {

            if(month == 0){namemonth = "January"}

            if(month == 1){namemonth = "February"}

            if(month == 2){namemonth = "March"}

            if(month == 3){namemonth = "April"}

            if(month == 4){namemonth = "May"}

            if(month == 5){namemonth = "June"}

            if(month == 6){namemonth = "July"}

            if(month == 7){namemonth = "August"}

            if(month == 8){namemonth = "September"}

            if(month == 9){namemonth = "October"}

            if(month == 10){namemonth = "November"}

            if(month == 11){namemonth = "December"}

            

            if(weekdays == 0){nameweekday = "Sunday"}  

            if(weekdays == 1){nameweekday = "Monday"} 

            if(weekdays == 2){nameweekday = "Tuesday"} 

            if(weekdays == 3){nameweekday = "Wednesday"} 

            if(weekdays == 4){nameweekday = "Thursday"} 

            if(weekdays == 5){nameweekday = "Friday"} 

            if(weekdays == 6){nameweekday = "Saturday"}      

            if(long_or_sort_onlynumber == 'long')

                {

                    container.innerHTML = nameweekday+', '+namemonth+' '+monthdays+', '+year;

                }

            if(long_or_sort_onlynumber == 'onlynumber')

                {

                    container.innerHTML = (month+1)+'/'+monthdays+'/'+year;

                }

            else

                {

                    container.innerHTML = namemonth+' '+monthdays+', '+year;                  

                }

        }

         else

        {

                                        

                    if(weekdays == 0){nameweekday = "Chç nh­t"}  

                    if(weekdays == 1){nameweekday = "Thé hai"} 

                    if(weekdays == 2){nameweekday = "Thé ba"} 

                    if(weekdays == 3){nameweekday = "Thé t°
"} 

                    if(weekdays == 4){nameweekday = "Thé n
m"} 

                    if(weekdays == 5){nameweekday = "Thé sáu"} 

                    if(weekdays == 6){nameweekday = "Thé b£y"}      

                    if(long_or_sort_onlynumber == 'long')

                    {

                            container.innerHTML = nameweekday+', ngày '+monthdays+' tháng '+(month+1)+' n
m '+year;

                    }

                    if(long_or_sort_onlynumber == 'onlynumber')

                    {

                            container.innerHTML = monthdays+'/'+(month+1)+'/'+year;

                    }

                    else

                    {

                            container.innerHTML = 'Ngày '+monthdays+' tháng '+(month+1)+' n
m '+year;

                    }

        }



}