//---------------------------------------------------------------
// Opacity Displayer, Version 1.0
// Copyright Michael Lovitt, 6/2002.
// Distribute freely, but please leave this notice intact.
//---------------------------------------------------------------

//---------------------------------------------------------------
// OPACITY OBJECT
//
// Instantiates the object, defines the properties and methods.
function OpacityObject(divId, strPath) {
	this.id = divId;
	this.path = strPath;
	if (ns){
		if (browserVersion>=5) {
			this.layerObject = document.getElementById(divId).style;
		} else { 
			this.layerObject = eval("document."+divId);
		}
	} else {
		this.layerObject = eval(divId + ".style");
	}
	this.setBackground = od_object_setBackground;
}
// Uses AlphaImageLoader filter, or the css background property,
// as appropriate, to apply a PNG or GIF as the background of the layerObject.
function od_object_setBackground() {	
	if (pngAlpha) {
		this.layerObject.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+this.path+".png', sizingMethod='scale')";
	} else if (pngNormal) {
		this.layerObject.backgroundImage = 'url('+this.path+'.png)';
	} else {
		this.layerObject.backgroundImage = 'url('+this.path+'.gif)';
	}
}
//---------------------------------------------------------------

//---------------------------------------------------------------
// OPACITY DISPLAY FUNCTION
// Outputs the image as a div with the AlphaImageLoader, or with
// a standard image tag.
function od_displayImage(strId, strPath, intWidth, intHeight, strClass, strAlt) {
	if (pngAlpha) {
		document.write('<div style="height:'+intHeight+'px;width:'+intWidth+'px;filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\''+strPath+'.png\', sizingMethod=\'scale\')" id="'+strId+'" class="'+strClass+'"></div>');
	} else if (pngNormal) {
		document.write('<img src="'+strPath+'.png" width="'+intWidth+'" height="'+intHeight+'" name="'+strId+'" border="0" class="'+strClass+'" alt="'+strAlt+'" />');
	} else {
		document.write('<img src="'+strPath+'.gif" width="'+intWidth+'" height="'+intHeight+'" name="'+strId+'" border="0" class="'+strClass+'" alt="'+strAlt+'" />');
	}
}
//---------------------------------------------------------------

//---------------------------------------------------------------------
// funzione per visualizzare immagine png con transparency e resize
function displayResize(idDiv,height,width,strPath,alt)     {
    /*if (browser.isIE55 || browser.isIE6up)  {
        document.write('<div id="'+idDiv+'" style ="height:'+height+'; width:'+width+'; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\''+strPath+'\', sizingMethod=\'scale\');"></DIV>');
    } else {
        document.write('<img src="'+strPath+'" alt="'+alt+'" width="'+width+'" />');
    }*/
    
    var OPER=navigator.userAgent.indexOf("Opera");
    if (document.layers){ //Netscape 4.x
    //document.write("Io sono Netscape 4.x");
    document.write('<img src="'+strPath+'" alt="'+alt+'" width="'+width+'" />');
    }
    else if((OPER>-1)) {
    //document.write("Io sono Opera");
    document.write('<img src="'+strPath+'" alt="'+alt+'" width="'+width+'" />');
    }
    else if (document.all){ // Explorer
    //document.write("Io sono Explorer");
    document.write('<div id="'+idDiv+'" style ="height:'+height+'; width:'+width+'; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\''+strPath+'\', sizingMethod=\'scale\');"></DIV>');
    }
    else if (document.getElementById){ //Netscape 6 - Firefox
    //document.write("Io sono Netscape 6");
    //document.write('<img src="'+strPath+'" alt="'+alt+'" width="'+width+'" />');
    document.write('<img src="'+strPath+'" alt="'+alt+'" />');
    }
    
}
//---------------------------------------------------------------------


//---------------------------------------------------------------------
// funzione per visualizzare immagine png con transparency e resize
function displayResizeScheda(idDiv,height,width,strPath,alt)     {
    /*if (browser.isIE55 || browser.isIE6up)  {
        document.write('<div id="'+idDiv+'" style ="height:'+height+'; width:'+width+'; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\''+strPath+'\', sizingMethod=\'scale\');"></DIV>');
    } else {
        document.write('<img src="'+strPath+'" alt="'+alt+'" width="'+width+'" />');
    }*/
    
    var OPER=navigator.userAgent.indexOf("Opera");
    if (document.layers){ //Netscape 4.x
    //document.write("Io sono Netscape 4.x");
    document.write('<img src="'+strPath+'" alt="'+alt+'" width="'+width+'" />');
    }
    else if((OPER>-1)) {
    //document.write("Io sono Opera");
    document.write('<img src="'+strPath+'" alt="'+alt+'" width="'+width+'" />');
    }
    else if (document.all){ // Explorer
    //document.write("Io sono Explorer");
    document.write('<div id="'+idDiv+'" style ="height:'+height+'px; width:'+width+'px; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\''+strPath+'\', sizingMethod=\'scale\');"></DIV>');
    }
    else if (document.getElementById){ //Netscape 6 - Firefox
    //document.write("Io sono Netscape 6");
    //document.write('<img src="'+strPath+'" alt="'+alt+'" width="'+width+'" />');
    document.write('<img src="'+strPath+'" alt="'+alt+'" />');
    }
    
}
//---------------------------------------------------------------------


//---------------------------------------------------------------------
// funzione per visualizzare immagine png con transparency e resize
function displayResizeHome(idDiv,height,width,strPath,alt)     {
    /*if (browser.isIE55 || browser.isIE6up)  {
        document.write('<div id="'+idDiv+'" style ="height:'+height+'; width:'+width+'; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\''+strPath+'\', sizingMethod=\'scale\');"></DIV>');
    } else {
        document.write('<img src="'+strPath+'" alt="'+alt+'" width="'+width+'" />');
    }*/
    
    var OPER=navigator.userAgent.indexOf("Opera");
    if (document.layers){ //Netscape 4.x
    //document.write("Io sono Netscape 4.x");
    document.write('<img src="'+strPath+'" alt="'+alt+'" width="'+width+'" />');
    }
    else if((OPER>-1)) {
    //document.write("Io sono Opera");
    document.write('<img src="'+strPath+'" alt="'+alt+'" width="'+width+'" />');
    }
    else if (document.all){ // Explorer
    //document.write("Io sono Explorer");
    /*
    document.write('<div id="'+idDiv+'" style ="height:'+height+'; width:'+width+'; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\''+strPath+'\', sizingMethod=\'scale\');"></DIV>');
    */
    document.write('<div id="'+idDiv+'" style ="height:500px; width:'+width+'; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\''+strPath+'\', sizingMethod=\'scale\');"></DIV>');
    
    }
    else if (document.getElementById){ //Netscape 6
    //document.write("Io sono Netscape 6");
    document.write('<img src="'+strPath+'" alt="'+alt+'" width="'+width+'" />');
    }
    
}
//---------------------------------------------------------------------


//---------------------------------------------------------------
// OPACITY ROLL-OVER FUNCTIONS
function od_rollOver(strId, strColor) {
	if (pngAlpha) {
		document.getElementById(strId).style.backgroundColor = strColor;
	} else {
	    if (document.images && (flag == true)) {
	        document[strId].src = eval(strId + "on.src");
	    }
	}
}
function od_rollOut(strId, strColor) {	
	if (pngAlpha) {
		document.getElementById(strId).style.backgroundColor = strColor;
	} else {
	    if (document.images) {
	        document[strId].src = eval(strId + "off.src");
	    }
	}
}
//---------------------------------------------------------------

//---------------------------------------------------------------
// global variables
var OPER=navigator.userAgent.indexOf("Opera");
if (document.layers){ //Netscape 4.x
    //document.write("Io sono Netscape 4.x");
    var pngNormal = true;
	var strExt = ".png";
    }
    else if((OPER>-1)) {
    //document.write("Io sono Opera");
    var pngNormal = true;
	var strExt = ".png";
    }
    else if (document.all){ // Explorer
    //document.write("Io sono Explorer");
    var pngAlpha = true;
	var strExt = ".png";
    }
    else if (document.getElementById){ //Netscape 6
    //document.write("Io sono Netscape 6");
    var pngNormal = true;
	var strExt = ".png";
    }

/*
// if IE5.5+ on win32, then display PNGs with AlphaImageLoader
if ((browser.isIE55 || browser.isIE6up) && browser.isWin32) {
	var pngAlpha = true;
	var strExt = ".png";
// else, if the browser can display PNGs normally, then do that. that list includes:
	//     -Gecko Engine: Netscape 6 or Mozilla, Mac or PC
	//     -IE5+ Mac (OpacityObject applies the background image at 100% opacity)
	//     -Opera 6+ PC
	//     -Opera 5+ Mac (Doesn't support dynamically-set background images)
	//     -Opera 6+ Linux 
	//     -Omniweb 3.1+ 
	//     -Icab 1.9+ 
	//     -WebTV 
	//     -Sega Dreamcast
} else if ((browser.isGecko) || (browser.isIE5up && browser.isMac) || (browser.isOpera && browser.isWin && browser.versionMajor >= 6) || (browser.isOpera && browser.isUnix && browser.versionMajor >= 6) || (browser.isOpera && browser.isMac && browser.versionMajor >= 5) || (browser.isOmniweb && browser.versionMinor >= 3.1) || (browser.isIcab && browser.versionMinor >= 1.9) || (browser.isWebtv) || (browser.isDreamcast)) {
	var pngNormal = true;
	var strExt = ".png";
    
//---------------------------------------------------------------
*/