var xmlHttp

function GetXmlHttpObject(handler){ 
	var objXmlHttp=null
	if(navigator.userAgent.indexOf("Opera")>=0){
		alert("This example doesn't work in Opera") 
		return 
	}
	if(navigator.userAgent.indexOf("MSIE")>=0){ 
		var strName = "Msxml2.XMLHTTP"
		if(navigator.appVersion.indexOf("MSIE 5.5")>=0){
			strName="Microsoft.XMLHTTP"
		} 
		try	{ 
			objXmlHttp=new ActiveXObject(strName)
			objXmlHttp.onreadystatechange=handler 
			return objXmlHttp
		} 
		catch(e){ 
			alert("Error. Scripting for ActiveX might be disabled") 
			return 
		} 
	} 
	if(navigator.userAgent.indexOf("Mozilla")>=0){    
		objXmlHttp = new XMLHttpRequest()
		objXmlHttp.onload  = handler
		objXmlHttp.onerror = handler 
		return objXmlHttp
	}  
	
}  /*-- FUNCTION GetXmlHttpObject() ENDS HERE --*/
  
 function fnnext(){ 
	    var      txt     = document.banner_frm.limit_txt.value;
	    //alert(txt);
	    var      txt1     = document.banner_frm.tot_limit.value;
	    var pages = Math.ceil(parseInt(txt1)/5);
	    var li = (pages - 1)*5;
	    
	    if(txt == li){
	    get_limit = 0;
	    }else{
	    var get_limit   = parseInt(txt)+parseInt(5);	
	    }
	     //alert(get_limit);
	    document.getElementById("limit_txt").value = get_limit;
	    var url = "ajax_banner.php?sid="+Math.random()+"&lim="+get_limit; 
		xmlHttp = GetXmlHttpObject(next_validate)
		xmlHttp.open("GET",url, true)
		xmlHttp.send(null)
	  }
  
	function next_validate(){ 
	     
		if(xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){   
		  document.getElementById("banner_div").innerHTML = xmlHttp.responseText;
		}
		else{   
		  //document.getElementById("image_div").innerHTML = '&nbsp;<font color="red">Loading...</font>';
		}
	}  /*-- FUNCTION stateChanged() ENDS HERE --*/ 
	
	
	
	
	
	
	 function fnprevious(){ 
	    var      txt     = document.banner_frm.limit_txt.value;
	    //alert(txt);
	    var      txt1     = document.banner_frm.tot_limit.value;
	    var pages = Math.ceil(parseInt(txt1)/5);
	    var li = (pages - 1)*5;
	    
	  
	   if(txt == '0'){
	    txt = li;
	    var get_limit    = txt;
	    var   set_limit  = document.banner_frm.limit_txt.value = get_limit;
	   }else{
	    var get_limit    = parseInt(txt)-parseInt(5);
	    var   set_limit  = document.banner_frm.limit_txt.value = get_limit;
	   }  
	    var url = "ajax_banner.php?lim="+get_limit; 
		xmlHttp = GetXmlHttpObject(previous_validate)
		xmlHttp.open("GET",url, true)
		xmlHttp.send(null)
	  }
	  
	  
	  
	  
	  
	 function previous_validate(){  
	    
		if(xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){   
		  document.getElementById("banner_div").innerHTML = xmlHttp.responseText;
		}
		else{   
		  //document.getElementById("image_div").innerHTML = '&nbsp;<font color="red">Loading...</font>';
		}
	}  /*-- FUNCTION stateChanged() ENDS HERE --*/