browser_name = navigator.appName;
browser_version = parseFloat(navigator.appVersion); 
if (browser_name == "Netscape" && browser_version < 2.0)  {roll = 'false';}
else if (browser_name == "Netscape" && browser_version == 2.0)  {roll = 'false';}
else if (browser_name == "Netscape" && browser_version >= 3.0)  {roll = 'true';}
else if (browser_name == "Microsoft Internet Explorer" && browser_version <= 2.0)  {roll = 'false';}
else if (browser_name == "Microsoft Internet Explorer" && browser_version >= 3.0)  {roll = 'true';}
else  {roll = 'false';}

function msover(img,ref)
{ if (roll == 'true'){document.images[img].src = ref;}}
function msout(img,ref)
{if (roll == 'true'){document.images[img].src = ref;}}


function checkForm(nomeform) {
	var num = nomeform.elements.length;
	var campinull = false ;
	for(var i=0; i<num ; i++) {
		var isrequired = nomeform.elements[i].getAttribute('id');
		if(isrequired == "required") {
			var nome = nomeform.elements[i].getAttribute('name');
			if(nomeform.elements[i].value == ''){
				//nomeform.elements[i].style.backgroundColor="#FFCCCC" ;
				document.getElementById(nome).style.color ="red" ;
				campinull = true;
			} else {
				document.getElementById(nome).style.color ="black" ;
			}
		}
	}
	if(campinull) {
		document.getElementById("alert").innerHTML = "<img src=\"img_immob/icone/alert_small.gif\">compila i campi in rosso";
		return false;
	} else {
		return true;
	}
}

function pageDisplay(mode, disp) {
	var n=document.getElementById('col_content');
	//if(!n){return;}
	//var uls=n.getElementsByTagName('h2');
	if(mode == "full") {
		document.getElementById("col_index").style.display = "block" ;
		document.getElementById("col_content").style.width = "574px" ;
		document.getElementById("col_content").style.padding= "15px 0px 0px 0px" ;
		n.getElementsByTagName("h2")[0].style.margin="0px 50px 0px 44px";
		n.getElementsByTagName("div")[0].style.margin="0px 50px 0px 44px";
		n.getElementsByTagName("div")[1].style.padding="0px 40px 0px 0px";
		if(disp=="int") {
			n.getElementsByTagName("div")[2].style.margin="0px 0px 0px 22px";
			n.getElementsByTagName("div")[3].style.width="300px";
			n.getElementsByTagName("div")[3].style.height="300px";
			n.getElementsByTagName("div")[4].style.margin="0px 10px 0px 354px";
			n.getElementsByTagName("div")[5].style.margin="0px 0px 0px 44px";
			document.images["img-scheda"].style.margin = "-50px 0px 0px -50px" ;
		} else if(disp=="des") {
			n.getElementsByTagName("div")[2].style.margin="0px 10px 0px 44px";
		} else if(disp=="img") {
			n.getElementsByTagName("div")[2].style.margin="0px 10px 0px 44px";
		}
	} else if (mode == "col") {
		document.getElementById("col_index").style.display = "none" ;
		document.getElementById("col_content").style.width = "auto" ;
		document.getElementById("col_content").style.background= "#fff" ;
		document.getElementById("col_content").style.padding= "15px 40px 0px 60px" ;
		document.getElementById("col_content").style.margin= "0px 0px 0px 0px" ;
		n.getElementsByTagName("h2")[0].style.margin="0px 0px 0px 0px";
		n.getElementsByTagName("div")[0].style.margin="0px 0px 0px 0px";
		n.getElementsByTagName("div")[1].style.padding="0px 0px 0px 0px";
		if(disp=="int") {
			document.images["img-scheda"].style.margin = "0px 0px 0px 0px" ;
			n.getElementsByTagName("div")[2].style.margin="0px 15px 0px 0px";
			n.getElementsByTagName("div")[3].style.width="400px";
			n.getElementsByTagName("div")[3].style.height="400px";
			n.getElementsByTagName("div")[4].style.margin="0px 0px 0px 0px";
			n.getElementsByTagName("div")[5].style.margin="0px 0px 0px 0px";
		} else if(disp=="des") {
			n.getElementsByTagName("div")[2].style.margin="0px 0px 0px 0px";
		} else if(disp=="img") {
			n.getElementsByTagName("h2")[0].style.margin="0px 29px 0px 20px";
			n.getElementsByTagName("div")[0].style.margin="0px 29px 0px 20px";
			n.getElementsByTagName("div")[2].style.margin="0px 29px 0px 20px";
		}
	}
}