/*
/   mc shared functions
*/
function getXmlHttpRequest(){
    var httpRequest=null;
    try{
        httpRequest=new ActiveXObject("Msxml2.XMLHTTP");
    }
    catch(e){
        try{
            httpRequest=new ActiveXObject("Microsoft.XMLHTTP");
        }
        catch(e){
            httpRequest=null;
        }
    }
    if(!httpRequest&&typeof XMLHttpRequest!="undefined"){
        httpRequest=new XMLHttpRequest();
		}
    return httpRequest;
}

function popolaElemento(idElDaPopolare, paginaFonteDati, metodo, parametri){
  var http=getXmlHttpRequest();
	var url=paginaFonteDati+"?" + parametri
	http.open(metodo, url , true)
	document.getElementById(idElDaPopolare).innerHTML="";
	http.onreadystatechange=function(){
		if (http.readyState==4 || http.readyState=="complete"){
			if (http.status == 200){
				document.getElementById(idElDaPopolare).innerHTML=http.responseText;
			} else {
				document.getElementById(idElDaPopolare).innerHTML="";
			}
		}
	}
	http.send(null);
}

function updateDiv(id, url){
	//aggiorna un elemento html
	var req=getXmlHttpRequest();
	if(req != null){
		req.open("GET",url,true);
		req.send(null);
		req.onreadystatechange=function(){
			if (req.readyState==4 || req.readyState=="complete"){
				if (req.status==200){
					document.getElementById(id).innerHTML=req.responseText;
				}
			}
		}
		return true;
	}else{
		return false;
	}
}

function updateSelect(id, url){
	//aggiorna un elemento html
	var el=document.getElementById(id);

	//elimina opzioni correnti
	var l=el.options.length;
	el.options[0]=new Option('caricamento...','',true);
	for(i=l;i>0;i--){
		el.options[i]=null;
	}

	var req=getXmlHttpRequest();
	req.open("GET",url,true);
	req.onreadystatechange=function(){
		if (req.readyState==4 || req.readyState=="complete"){
			if (req.status==200){
				if(req.responseText!=''){
					//crea array nuove opzioni
					var new_options_arr=req.responseText.split("|");
					var l=new_options_arr.length;
					el.options[0]=null;
					for(i=0;i<l;i++){
						var p=new_options_arr[i].split("_");
						el.options[i]=new Option(p[0],p[1]);
					}
				}else{
					el.options[0]=null;
				}
			}
		}
	}
	req.send(null);
}

function doSubmit(formtarget, postcmd){
	var frm=document.forms[formtarget];
	if(postcmd!=undefined){
		frm.postcmd.value=postcmd;
	}
	frm.submit();
}

function dummyImg(img,imgfile) {
	if(imgfile==undefined){
		imgfile="img/spacer.gif";
	}
    img.src=imgfile;
}

//quality function

function lessQuality(formname,sda){
	rating=parseInt(document.forms[formname].rating.value);
	if(sda=='' || sda==undefined)
		sda='true';
	if(sda=='true'){
		if(document.getElementById('cantieri').checked==1)
			cantieri='img/quadrifogli_cantieri/';
		else
			cantieri='img/';
	}else
		cantieri='img/';
	if((rating-=1)>-1){
		document.getElementById('qualityImage').setAttribute('src','http://www.grupposirio.com/'+cantieri+rating+'.gif');
	}else{
		rating=0;
	}
	document.forms[formname].rating.value=rating;
}

function moreQuality(formname,sda){
	rating=parseInt(document.forms[formname].rating.value);
	if(sda=='' || sda==undefined)
		sda='true';
	if(sda=='true'){
		if(document.getElementById('cantieri').checked==1)
			cantieri='img/quadrifogli_cantieri/';
		else
			cantieri='img/';
	}else
		cantieri='img/';
	if((rating+=1)<6){
		document.getElementById('qualityImage').setAttribute('src','http://www.grupposirio.com/'+cantieri+rating+'.gif');
	}else{
		rating=5;
	}
	document.forms[formname].rating.value=rating;
}

function changeBc(div,color){
	if(document.all)eval('document.all.'+div+'.style.backgroundColor="'+color+'"')
	if(document.layers)eval('document.layers.'+div+'.bgColor="'+color+'"')
}

//funzione per cambio layout form ricerca

function updateSearchForm(forcantieri,position,agenzia){
	var position2='';
	document.getElementById('rating').value=5;
	if(forcantieri.checked==1)
		document.getElementById('preloader').style.backgroundColor='#E0AD20';
	else{
		forcantieri=false;
		if(position!='')
			document.getElementById('preloader').style.backgroundColor='#00932C';
		else
			document.getElementById('preloader').style.backgroundColor='#B9B9B9';
	}
	document.getElementById('preloader').style.display="";
	document.getElementById('titolo').style.display="none";
	document.getElementById('background-form').style.display="none";
	if(position!='')
		position2='&pos=../';
	if(forcantieri.checked==1){
		forcantieri=true;
		document.getElementById('background-form').style.backgroundColor='#E0AD20';
		document.getElementById('qualityImage').src=position+'img/quadrifogli_cantieri/5.gif';
	}else{
		forcantieri=false;
		document.getElementById('qualityImage').src=position+'img/5.gif';
		if(position!='')
			document.getElementById('background-form').style.backgroundColor='#00932C';
		else
			document.getElementById('background-form').style.backgroundColor='#B9B9B9';
	}
	if(agenzia!='')
		agenzia='&agenzia='+agenzia;
	else{
		agenzia='';
		updateDiv('titolo', position+'popolaCantieri.php?titolo='+forcantieri+position2+agenzia);
	}
	if(updateDiv('affitto', position+'popolaCantieri.php?affitto='+forcantieri+position2+agenzia))
		if(updateDiv('vendita', position+'popolaCantieri.php?vendita='+forcantieri+position2+agenzia))
			if(updateDiv('pulsante', position+'popolaCantieri.php?pulsante='+forcantieri+position2+agenzia))
				if(updateDiv('provcomp', position+'popolaCantieri.php?provcomp='+forcantieri+position2+agenzia))
					if(updateDiv('comloc', position+'popolaCantieri.php?comloc='+forcantieri+position2+agenzia))
						if(updateDiv('space', position+'popolaCantieri.php?space='+forcantieri+position2+agenzia))
							if(updateDiv('tipologia', position+'popolaCantieri.php?tipologia='+forcantieri+position2+agenzia)){
								setTimeout("document.getElementById('preloader').style.display='none'", 2000);
								setTimeout("document.getElementById('titolo').style.display=''", 2000);
								setTimeout("document.getElementById('background-form').style.display=''", 2000);
							}
}

function chkbrowser(){
	if(window.opera && window.print)
		document.getElementById('favourites').innerHTML='';
}

//funzione per aggiunta pagina ai preferiti
function bookmarksite(){
	url = location.href;
	title = document.title;
	if(window.sidebar) // firefox
		window.sidebar.addPanel(title, url, "");
	else if(window.opera && window.print){ // opera
		var elem = document.createElement('a');
		elem.setAttribute('href',url);
		elem.setAttribute('title',title);
		elem.setAttribute('rel','sidebar');
		elem.click();
	}
	else if(document.all)// ie
		window.external.AddFavorite(url, title);
}

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