codice:
var ns4 = (navigator.appName.indexOf("Netscape") != -1 && !document.getElementById);
if(!window.JSFX)
JSFX=new Object();
JSFX.layerNo=0;
/**********************************************************************************/
JSFX.createLayer = function(htmlStr, parent)
{
var elem = null;
if(document.layers)
{
var xName="xLayer" + JSFX.layerNo++;
if(parent == null)
elem=new Layer(2000);
else
elem=new Layer(2000, parent.elem);
elem.document.open();
elem.document.write(htmlStr);
elem.document.close();
elem.moveTo(0,0);
elem.innerHTML = htmlStr;
}
else
if(document.all)
{
if(parent == null)
parent=document.body;
else
parent=parent.elem;
var xName = "xLayer" + JSFX.layerNo++;
var txt = '<DIV ID="' + xName + '"'+ ' STYLE="position:absolute;left:0;top:0;visibility:hidden">' + htmlStr
+ '</DIV>';
parent.insertAdjacentHTML("BeforeEnd",txt);
elem = document.all[xName];
}
else
if (document.getElementById)
{
if(parent == null)
parent=document.body;
else
parent=parent.elem;
var xName="xLayer" + JSFX.layerNo++;
var txt = ""
+ "position:absolute;left:0px;top:0px;visibility:hidden";
var newRange = document.createRange();
elem = document.createElement("DIV");
elem.setAttribute("style",txt);
elem.setAttribute("id", xName);
parent.appendChild(elem);
newRange.setStartBefore(elem);
strFrag = newRange.createContextualFragment(htmlStr);
elem.appendChild(strFrag);
}
return elem;
}
/**********************************************************************************/
JSFX.Layer = function(newLayer, parent)
{
if(!newLayer)
return;
if(typeof newLayer == "string")
this.elem = JSFX.createLayer(newLayer, parent);
else
this.elem=newLayer;
if(document.layers)
{
this.images = this.elem.document.images;
this.parent = parent;
this.style = this.elem;
if(parent != null)
this.style.visibility = "inherit";
}
else
{
this.images = document.images;
this.parent = parent;
this.style = this.elem.style;
}
window[this.elem.id]=this; //save a reference to this
}
/**********************************************************************************/
JSFX.findLayer = function(theDiv, d)
{
if(document.layers)
{
var i;
if(d==null) d = document;
var theLayer = d.layers[theDiv];
if(theLayer != null)
return(theLayer);
else
for(i=0 ; i<d.layers.length ; i++)
{
theLayer = JSFX.findLayer(theDiv, d.layers[i].document);
if(theLayer != null)
return(theLayer);
}
return("Undefined....");
}
else
if(document.all)
return(document.all[theDiv]);
else
if(document.getElementById)
return(document.getElementById(theDiv));
else
return("Undefined.....");
}
/**********************************************************************************/
/*** moveTo (x,y) ***/
JSFX.Layer.prototype.moveTo = function(x,y)
{
this.style.left = x+"px";
this.style.top = y+"px";
}
if(ns4)
JSFX.Layer.prototype.moveTo = function(x,y) { this.elem.moveTo(x,y); }
/**********************************************************************************/
/*** show()/hide() Visibility ***/
JSFX.Layer.prototype.show = function() { this.style.visibility = "visible"; }
JSFX.Layer.prototype.hide = function() { this.style.visibility = "hidden"; }
JSFX.Layer.prototype.isVisible = function() { return this.style.visibility == "visible"; }
if(ns4)
{
JSFX.Layer.prototype.show = function() { this.style.visibility = "show"; }
JSFX.Layer.prototype.hide = function() { this.style.visibility = "hide"; }
JSFX.Layer.prototype.isVisible = function() { return this.style.visibility == "show"; }
}
/**********************************************************************************/
/*** zIndex ***/
JSFX.Layer.prototype.setzIndex = function(z) { this.style.zIndex = z; }
JSFX.Layer.prototype.getzIndex = function() { return this.style.zIndex; }
/**********************************************************************************/
/*** ForeGround (text) Color ***/
JSFX.Layer.prototype.setColor = function(c){this.style.color=c;}
if(ns4)
JSFX.Layer.prototype.setColor = function(c)
{
this.elem.document.write("<FONT COLOR='"+c+"'>"+this.elem.innerHTML+"</FONT>");
this.elem.document.close();
}
/**********************************************************************************/
/*** BackGround Color ***/
JSFX.Layer.prototype.setBgColor = function(color) { this.style.backgroundColor = color==null?'transparent':color; }
if(ns4)
JSFX.Layer.prototype.setBgColor = function(color) { this.elem.bgColor = color; }
/**********************************************************************************/
/*** BackGround Image ***/
JSFX.Layer.prototype.setBgImage = function(image) { this.style.backgroundImage = "url("+image+")"; }
if(ns4)
JSFX.Layer.prototype.setBgImage = function(image) { this.style.background.src = image; }
/**********************************************************************************/
/*** set Content***/
JSFX.Layer.prototype.setContent = function(xHtml) { this.elem.innerHTML=xHtml; }
if(ns4)
JSFX.Layer.prototype.setContent = function(xHtml)
{
this.elem.document.write(xHtml);
this.elem.document.close();
this.elem.innerHTML = xHtml;
}
/**********************************************************************************/
/*** Clipping ***/
JSFX.Layer.prototype.clip = function(x1,y1, x2,y2){ this.style.clip="rect("+y1+" "+x2+" "+y2+" "+x1+")"; }
if(ns4)
JSFX.Layer.prototype.clip = function(x1,y1, x2,y2)
{
this.style.clip.top =y1;
this.style.clip.left =x1;
this.style.clip.bottom =y2;
this.style.clip.right =x2;
}
/**********************************************************************************/
/*** Resize ***/
JSFX.Layer.prototype.resizeTo = function(w,h)
{
this.style.width =w + "px";
this.style.height =h + "px";
}
if(ns4)
JSFX.Layer.prototype.resizeTo = function(w,h)
{
this.style.clip.width =w;
this.style.clip.height =h;
}
/**********************************************************************************/
/*** getX/Y ***/
JSFX.Layer.prototype.getX = function() { return parseInt(this.style.left); }
JSFX.Layer.prototype.getY = function() { return parseInt(this.style.top); }
if(ns4)
{
JSFX.Layer.prototype.getX = function() { return this.style.left; }
JSFX.Layer.prototype.getY = function() { return this.style.top; }
}
/**********************************************************************************/
/*** getWidth/Height ***/
JSFX.Layer.prototype.getWidth = function() { return this.elem.offsetWidth; }
JSFX.Layer.prototype.getHeight = function() { return this.elem.offsetHeight; }
if(!document.getElementById)
JSFX.Layer.prototype.getWidth = function()
{
//Extra processing here for clip
return this.elem.scrollWidth;
}
if(ns4)
{
JSFX.Layer.prototype.getWidth = function() { return this.style.clip.right; }
JSFX.Layer.prototype.getHeight = function() { return this.style.clip.bottom; }
}
/**********************************************************************************/
/*** Opacity ***/
if(ns4)
{
JSFX.Layer.prototype.setOpacity = function(pc) {return 0;}
}
else if(document.all)
{
JSFX.Layer.prototype.setOpacity = function(pc)
{
if(this.style.filter=="")
this.style.filter="alpha(opacity=100);";
this.elem.filters.alpha.opacity=pc;
}
}
else
{
/*** Assume NS6 ***/
JSFX.Layer.prototype.setOpacity = function(pc){ this.style.MozOpacity=pc+'%' }
}
/**************************************************************************/
/*** Event Handling - Start ***/
/*** NS4 ***/
if(ns4)
{
JSFX.eventmasks = {
onabort:Event.ABORT, onblur:Event.BLUR, onchange:Event.CHANGE,
onclick:Event.CLICK, ondblclick:Event.DBLCLICK,
ondragdrop:Event.DRAGDROP, onerror:Event.ERROR,
onfocus:Event.FOCUS, onkeydown:Event.KEYDOWN,
onkeypress:Event.KEYPRESS, onkeyup:Event.KEYUP, onload:Event.LOAD,
onmousedown:Event.MOUSEDOWN, onmousemove:Event.MOUSEMOVE,
onmouseout:Event.MOUSEOUT, onmouseover:Event.MOUSEOVER,
onmouseup:Event.MOUSEUP, onmove:Event.MOVE, onreset:Event.RESET,
onresize:Event.RESIZE, onselect:Event.SELECT, onsubmit:Event.SUBMIT,
onunload:Event.UNLOAD
};
JSFX.Layer.prototype.addEventHandler = function(eventname, handler)
{
this.elem.captureEvents(JSFX.eventmasks[eventname]);
var xl = this;
this.elem[eventname] = function(event) {
event.clientX = event.pageX;
event.clientY = event.pageY;
event.button = event.which;
event.keyCode = event.which;
event.altKey =((event.modifiers & Event.ALT_MASK) != 0);
event.ctrlKey =((event.modifiers & Event.CONTROL_MASK) != 0);
event.shiftKey =((event.modifiers & Event.SHIFT_MASK) != 0);
return handler(xl, event);
}
}
JSFX.Layer.prototype.removeEventHandler = function(eventName)
{
this.elem.releaseEvents(JSFX.eventmasks[eventName]);
delete this.elem[eventName];
}
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