function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

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_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { 
  	v=args[i+2];
    if (obj.style) { 
		obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; 
	}
    obj.visibility=v; 
  }
}


function zoomFoto(nom){
	zoom=window.open('images/'+ nom +'.jpg','','width=800,height=600,left=200,top=120,toolbar=no');
}

function sumaTotal(){
	var suma = 0;
	document.getElementById("Total").value = 0;

	for (i=1;i<(document.frmBotiga.elements.length-22);i++)
	{
		if (!isNaN(parseInt(document.frmBotiga.elements[i].value)) && (parseInt(document.frmBotiga.elements[i].value) > 0)) {
			suma = suma + parseFloat(document.frmBotiga.elements[i].value * document.frmBotiga.elements[++i].value);
		}else{
			i++;
		}
	}

	if (!isNaN(parseFloat(document.getElementById("Total").value))) {
		
		document.getElementById("Total").value = formatCurrency(suma);
	}

}

function iniciarvar(){
	for (i=1;i<(document.frmBotiga.elements.length-22);i++)
	{
		document.frmBotiga.elements[i++].value= 0;
	}
	document.frmBotiga.elements[0].value= formatCurrency(0);
}

function formatCurrency(num) {
	num = num.toString()//.replace(/\€|\,/g,'');
	if(isNaN(num)) num = "0";
	cents = Math.floor((num*100+0.5)%100);
	num = Math.floor((num*100+0.5)/100).toString();
	if(cents < 10) cents = "0" + cents;
	for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
	num = num.substring(0,num.length-(4*i+3))+'.'+num.substring(num.length-(4*i+3));
	return (num + ',' + cents);
}