var request;
var dest;

function processStateChange(){
    if (request.readyState == 1 || request.readyState == 2 || request.readyState == 3 ){
        contentDiv = document.getElementById(dest);
		contentDiv.innerHTML = "<br><img src=\"/images/loader.gif\"><br>";
		}
	else if (request.readyState == 4){
        contentDiv = document.getElementById(dest);

        if (request.status == 200){
            response = request.responseText;
            contentDiv.innerHTML = response;
        } else {
            alert( "Error: Status "+request.status);
        }
    }
}

function loadHTML(URL, destination)
{

    dest = destination;
    if (window.XMLHttpRequest){

        request = new XMLHttpRequest();
        request.onreadystatechange = processStateChange;
        request.open("GET", URL);
        request.send(null);
    }
	else if (window.ActiveXObject)
	{

		 try {
				request = new ActiveXObject('Msxml2.XMLHTTP');
			} catch (e){
				try {
					request = new ActiveXObject('Microsoft.XMLHTTP');
				} catch (e){}
			}


			if (request)
			{

				request.onreadystatechange = processStateChange;
				request.open("GET", URL);
				request.send(null);
			}

    }
}
function loadSchem(num,URL, destination, ch)
{
  
	if (num==1)
	{
	  document.sd.model_id.disabled=true;	
	  document.sd.chassis_id.disabled=true;	
	  document.sd.engine_id.disabled=true;	
	  
	  document.sd.engine_id.options.length=0;
	  document.sd.engine_id.options[0]=new Option("- Выберите двигатель","0");
	  document.sd.chassis_id.options.length=0;
	  document.sd.chassis_id.options[0]=new Option("- Выберите кузов","0");
	  document.sd.model_id.options.length=0;
	  document.sd.model_id.options[0]=new Option("- Выберите модель","0");	 
	}
    else if (num==2)
	{
	  document.sd.chassis_id.disabled=true;	
	  document.sd.engine_id.disabled=true;
	  
	  document.sd.engine_id.options.length=0;
	  document.sd.engine_id.options[0]=new Option("- Выберите двигатель","0");
	  document.sd.chassis_id.options.length=0;
	  document.sd.chassis_id.options[0]=new Option("- Выберите кузов","0");
		
	 	
	}
	else if (num==3)
	{

	  document.sd.engine_id.disabled=true;
	  
	  document.sd.engine_id.options.length=0;
	  document.sd.engine_id.options[0]=new Option("- Выберите двигатель","0");
 	
	}
if (ch>0)
{   	
    dest = destination;
    if (window.XMLHttpRequest){

        request = new XMLHttpRequest();
        request.onreadystatechange = processStateChange;
        request.open("GET", URL);
        request.send(null);
    }
	else if (window.ActiveXObject)
	{

		 try {
				request = new ActiveXObject('Msxml2.XMLHTTP');
			} catch (e){
				try {
					request = new ActiveXObject('Microsoft.XMLHTTP');
				} catch (e){}
			}


			if (request)
			{

				request.onreadystatechange = processStateChange;
				request.open("GET", URL);
				request.send(null);
			}

    }
	
}
else 	return false;
}
 function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}