var obj;

function Right(str, n){
	if (n <= 0)
	   return "";
	else if (n > String(str).length)
	   return str;
	else {
	   var iLen = String(str).length;
	   return String(str).substring(iLen, iLen - n);
	}
 }                              

var DisableOutImg;
DisableOutImg = false;
     
 function changeImg(id,action){
	if (action == "over"){
		if (Right($(id).src,6)!="_b.gif"){
			DisableOutImg = false;
			$(id).src=$(id).src.replace(".gif","_b.gif");	
		}
		else DisableOutImg = true;
	} 
	else if (action == "out"){
		if (DisableOutImg == false) $(id).src=$(id).src.replace("_b.gif",".gif");
	}   
} 
 
 function changeImgNoDiv(id,action){
	if (action == "over"){
		$(id).src=$(id).src.replace("_a.gif","_b.gif");	
	} 
	else if (action == "out"){
		$(id).src=$(id).src.replace("_b.gif","_a.gif");
	}   
 }     
                 
function eventNumeri(){
	var versionBrowser=navigator.appVersion;
	var sfEls = $('content').getElementsByTagName("IMG");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			if (this.className == "rollhover"){
				changeImg(this,'over');
				obj = this;
				if (parseInt(this.parentNode.parentNode.style.left) > 450) {
					$('box_overlayer_left').style.display='block';
					totop = parseInt(this.parentNode.parentNode.style.top)-39;
					toleft = parseInt(this.parentNode.parentNode.style.left)-366;			
					$('box_overlayer_left').style.top=totop+'px';
					$('box_overlayer_left').style.left=toleft+'px';
					imgtoload = this.parentNode.className;
					if (imgtoload != ""){
						if (versionBrowser.indexOf("MSIE 6") != -1) $('img_left').src='images/overlayer/ie6/'+imgtoload+'.jpg';
						else $('img_left').src='images/overlayer/'+imgtoload+'.jpg';
					} 
					$('a_left').href=this.parentNode.href;
					pagetoload = readAttributes(this.parentNode,"rel");
					$('a_left').setAttribute('rel',pagetoload);
				}
				else{
					$('box_overlayer_right').style.display='block';
					totop = parseInt(this.parentNode.parentNode.style.top)-39;
					toleft = parseInt(this.parentNode.parentNode.style.left)+105;			
					$('box_overlayer_right').style.top=totop+'px';
					$('box_overlayer_right').style.left=toleft+'px';
					imgtoload = this.parentNode.className;
					if (imgtoload != ""){
						if (versionBrowser.indexOf("MSIE 6") != -1) $('img_right').src='images/overlayer/ie6/'+imgtoload+'.jpg';
						else $('img_right').src='images/overlayer/'+imgtoload+'.jpg';
					} 					
					$('a_right').href=this.parentNode.href;
					pagetoload = readAttributes(this.parentNode,"rel");
					$('a_right').setAttribute('rel',pagetoload);
				}								
			}
			else if (this.className == "rollhoverSenzaDiv"){
				changeImgNoDiv(this,'over');
			}
		}
		sfEls[i].onmouseout=function() {
			if (this.className == "rollhover"){
				changeImg(this,'out');
				$('box_overlayer_left').style.display='none';	
				$('box_overlayer_right').style.display='none';			
			}
			else if (this.className == "rollhoverSenzaDiv"){
				changeImgNoDiv(this,'out');
			}			
		}
	}	
	var sfEls = $('overlays').getElementsByTagName("DIV");
	for (var i=0; i<sfEls.length; i++) {		
		sfEls[i].onmouseover=function() {
			if ((this.id == 'box_overlayer_left') || (this.id == 'box_overlayer_right')) {
				this.style.display='block';
				changeImg(obj,'over');				
			}
		}
		sfEls[i].onmouseout=function() {
			if ((this.id == 'box_overlayer_left') || (this.id == 'box_overlayer_right')) {
				this.style.display='none';
				changeImg(obj,'out');
			}
		}
	}	
}

function readAttributes(object,name){	
	if($(object).getAttribute('rel'))
		return $(object).getAttribute('rel');
	else
		return returnvalue = "";
	/*returnvalue = "";
	for( var x = 0; x < $(object).attributes.length; x++ ) {
		if( $(obj).attributes[x].nodeName.toLowerCase() == name ) {
			returnvalue = $(object).attributes[x].nodeValue;
		}
	}
	return returnvalue;*/
}