var xmlhttp
var div_id
function ajax_execute(divid,func,data){
	document.getElementById('loading').style.visibility='visible';
	new Ajax.Request('ajax_display.php?func='+func+'&'+data,
	  {
	    method:'get',
	    onSuccess: function(transport){
	      var response = transport.responseText || "no response text";
	      var div = document.getElementById(divid);
	  
	      if(div.id[0] == '_') 
	      {
	    	sethtml(divid,response);
	      }
	      else
	      {
	    	sethtml(divid,response);
	      }
	    },
	    onFailure: function(){ alert('Something went wrong...') }
	  });
	  
	if (divid=='') document.getElementById('loading').style.visibility='hidden';
}
function sendRequest(url)
{
xmlhttp=null

// code for Mozilla, etc.
if (window.XMLHttpRequest)
  {
  xmlhttp=new XMLHttpRequest()
  }
// code for IE
else if (window.ActiveXObject)
  {
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP")
  }
if (xmlhttp!=null)
  {
  xmlhttp.onreadystatechange=state_Change
  xmlhttp.open("GET",url,true)
  xmlhttp.send(null)
  }
else
  {
  alert("Your browser does not support XMLHTTP.")
  }
  
}

function state_Change()
{
// if xmlhttp shows "loaded"
if (xmlhttp.readyState==4)
  {
  // if "OK"
  if (xmlhttp.status==200)
    {
    	var div = document.getElementById(div_id);
    	if(div.id[0] == '_') 
    	  {
    		div.innerHTML += xmlhttp.responseText
    	  }
    	else
    	  {
    	  	div.innerHTML = xmlhttp.responseText
    	  }	
    }
  else
    {
    alert("Problem retrieving XML data")
    }
  }
}
function sethtml(div,content) {
         var search = content;
         var script;
         
         var is_singleq = 0; var singleq = "'";
         var is_doubleq = 0; var doubleq = '"';
         var is_escaped = 0; var escap = "\\";
         var layer = 0;
               document.getElementById(div).innerHTML=content;
         while( script = search.match(/(<script[^>]+javascript[^>]+>\s*(<!--)?)/)) {
            search = search.substr(search.indexOf(RegExp.$1) + RegExp.$1.length);
            if (!(endscript = search.match(/((-->)?\s*<\/script>)/))) break;
            block = search.substr(0, search.indexOf(RegExp.$1));
            search = search.substring(block.length + RegExp.$1.length);
            
            while(func = block.match(/(function(.+?)\((.*?)\)\s*\{)/)) {
               eval(block.substr(0,block.indexOf(RegExp.$1)));
               // for evaluating non functions
               
               block = block.substr(block.indexOf(RegExp.$1) + RegExp.$1.length);
               name = RegExp.$2;
               param = RegExp.$3;
               
               is_singleq = 0;
               is_doubleq = 0;
               is_escaped = 0;
               layer = 0;
               
               
               for(i=0;i<block.length;i++) {
                  c = block.substr(i,1);
                  
                  if ((is_singleq || is_doubleq) && is_escaped) {
                     is_escaped = 0;
                  } else if (!is_doubleq && (c==singleq)) {
                     is_singleq = !is_singleq;
                  } else if (!is_singleq && (c==doubleq)) {
                     is_doubleq = !is_doubleq;
                  } else if ((is_singleq || is_doubleq) && (c==escap)) {
                     is_escaped = 1;
                  } else if ( c=="{") {
                     layer++;
                  } else if ( c=="}") {
                     if ( layer==0 ) {
                        break;
                     }
                     layer--;
                  }
               }
               
               code = block.substr(0,i-1);
               block = block.substr(i +1);
               
               code = code.replace(/\n/g, '\\n');
               code = code.replace(/\r/g, '\\r');
               code = code.replace(/'/g,"\\'");
               
               eval(name + " = new Function('"+param+"','"+code+"');");
            }
            eval(block); // for evaluating non functions
         }
      }