/*
File: JSCODE.JS
---------------
incluso nel file principale
contiene tutte le funzioni javascript richiamate
dalle varie pagine
*/
 


  
function open_img(img,w,h)
//---------------------------
// apre l'immagine in una finestra popup l'immagine alle sue dimensioni originali
 {
   var new_win;
   prop = "top=50,left=50,resizable=yes, location=no,width=" + w + ",height=" + h;
   new_win = window.open('','',prop);
   new_win.document.write("<html><head><title>Immagine</title></head><body leftmargin=0 topmargin=0><img src='"+img+"'></body></html>");
 }


function open_page(page,prop)
//----------------------------
// apre in pop-up la pagina page con le caratteristiche definite in prop
{
   var left;
   left = (window.screen.availwidth - 770)/2 +120;
   n = window.open(page,'',"top=160,left="+left+","+prop);

}



//----------------------------------- USERNAME E PASSWORD -----------------------------
function Check_pwd(nomeform)
{
 // controlla la validità di username e password
    	if (eval(nomeform).username.value == "" || (eval(nomeform).username.value.length < 4))
    	{
    		alert ("Inserire uno username di almeno 4 caratteri.");
    		eval(nomeform).username.focus();
    		return false;
    	}
    	
    	if (eval(nomeform).password.value == "" || (eval(nomeform).password.value.length < 4))
    	{
    		alert ("Inserire una password di almeno 4 caratteri.");
    		eval(nomeform).password.focus();
    		return false;
    	}

}

function Home()
{
 		 document.frmmenu.content.value='';
		 document.frmmenu.submit();

}


function cownter(nome_textarea,max){
		var testo = eval("document.frmins."+nome_textarea).value;
		
		if (testo.length > max) {
			eval("document.frmins."+nome_textarea).value = testo.substr(0,max);
		}

	}


function Load_More(val){
		parent.document.categoria.id.value=val;
		parent.document.categoria.submit();
	}


function MM_displayStatusMsg(msgStr) { 
// Imposta il testo nella barra di stato
  status=msgStr;
  document.MM_returnValue = true;
  }
 

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

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];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function SwitchImg()
{ //start
  var rem, keep=0, store, obj, switcher=new Array, history=document.Data;
    for (rem=0; rem < (SwitchImg.arguments.length-2); rem+=3) {
    	store = SwitchImg.arguments[(navigator.appName == 'Netscape')?rem:rem+1];
    if ((store.indexOf('document.layers[')==0 && document.layers==null) ||
        (store.indexOf('document.all[')==0 && document.all==null))
         store = 'document'+store.substring(store.lastIndexOf('.'),store.length);
         obj = eval(store);
    if (obj != null) {
   	   switcher[keep++] = obj;
      switcher[keep++] = (history==null || history[keep-1]!=obj)?obj.src:history[keep];
      obj.src = SwitchImg.arguments[rem+2];
  } }
  document.Data = switcher;
} //end

function RestoreImg()
{ //start
  if (document.Data != null)
    for (var rem=0; rem<(document.Data.length-1); rem+=2)
      document.Data[rem].src=document.Data[rem+1];
} //end

