function lib_bwcheck(){ //Browsercheck (needed)
	this.ver=navigator.appVersion
	this.agent=navigator.userAgent
	this.dom=document.getElementById?1:0
	this.opera5=this.agent.indexOf("Opera 5")>-1
	this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0; 
	this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
	this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
	this.ie=this.ie4||this.ie5||this.ie6
	this.mac=this.agent.indexOf("Mac")>-1
	this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0; 
	this.ns4=(document.layers && !this.dom)?1:0;
	this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
	return this
}
var bw=new lib_bwcheck()



/***************************************************************************************
Variables to set:
***************************************************************************************/
//messages[4] = '<div class="clCaption">Your caption</div><br>Description of test link 4</div>'
//To have more descriptions just add to the array.

fromX = 20 //How much from the actual mouse X should the description box appear?
fromY = -20 //How much from the actual mouse Y should the description box appear?

//To set the font size, font type, border color or remove the border or whatever,
//change the clDescription class in the stylesheet.

//Makes crossbrowser object.
function makeObj(obj){								
   	this.evnt=bw.dom? document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?document.layers[obj]:0;
	if(!this.evnt) return false
	this.css=bw.dom||bw.ie4?this.evnt.style:bw.ns4?this.evnt:0;	
   	this.wref=bw.dom||bw.ie4?this.evnt:bw.ns4?this.css.document:0;		
	this.writeIt=b_writeIt;																
	return this
}

// A unit of measure that will be added when setting the position of a layer.
var px = bw.ns4||window.opera?"":"px";

function b_writeIt(text){
	if (bw.ns4){this.wref.write(text);this.wref.close()}
	else this.wref.innerHTML = text
}

//Capturing mousemove
var descx = 0
var descy = 0
function popmousemove(e){descx=bw.ns4||bw.ns6?e.pageX:event.x; descy=bw.ns4||bw.ns6?e.pageY:event.y}

var oDesc;
//Shows the messages
function popup(e){
    if(oDesc){
		//becchiamo il numero da scrivere
		var objId;
		if(navigator.appName.indexOf("Netscape")>(-1))
		{
			objId = e.target.id;
		}else
		{
			objId= window.event.srcElement.id;
		}
		
		var Obj = document.getElementById(objId);
		var posUl = Obj.src.lastIndexOf("/");
		var nome = Obj.src.substring(posUl +1);
		var __indice = nome.replace(".gif", "");
		if(messages[__indice] != "" && messages[__indice]!= null && messages[__indice] != "undefined"){
			oDesc.writeIt('<div class="clDescription">'+messages[__indice]+'</div>')
			if(bw.ie5||bw.ie6) descy = descy+document.body.scrollTop
			
			if(descx > 250)
			{
				oDesc.css.left = ((descx- 180)) + px
				oDesc.css.top = (descy+fromY)+px
			}else
			{
				oDesc.css.left = (descx+fromX) + px
				oDesc.css.top = (descy+fromY)+px
			
			}
			
			oDesc.css.visibility = "visible"
		}
    }
}
//Hides it
function popout(){
	if(oDesc) oDesc.css.visibility = "hidden"
}
function setPopup(){
   	if(bw.ns4)document.captureEvents(Event.MOUSEMOVE)
    document.onmousemove = popmousemove;
	oDesc = new makeObj('divDescription')
}