function detect_os(){
	var v_sis="";
	if (navigator.platform.toUpperCase().indexOf("WIN")==-1){
		v_sis="mac";
	}else{
		v_sis="win";
	}
	return v_sis;					
}
var ns4=(document.layers)?true:false;
var ie4=(document.all)?true:false;
var dom=(!document.all && document.getElementById) ? true : false;
var v_plat=detect_os();

function canvi(celda,actiu){
	nom_cel="opcio"+celda;
	if (actiu=="S"){
		color='#F1F1F1';
	}else{
		color='#ffffff';
	}
	if (!ns4){
		if (!dom){
			//explorer
			if (ie4){
				document.all[nom_cel].style.background=color;
			}
		}else{
			//ns6
			document.getElementById(nom_cel).style.background=color;
		}
	}
	return;
}

function val_fecha(v_dat){
		
	var mesos=new Array(31,28,31,30,31,30,31,31,30,31,30,31);
	
	var fecha=v_dat
				
	var dia="";
	var mes="";
	var ano="";
	
	var dia=fecha.substr(0,2);
	var se1=fecha.substr(2,1);
	var mes=fecha.substr(3,2);
	var se2=fecha.substr(5,1);
	var ano=fecha.substr(6,4);
								
	var ok=true;
	
	if((se1!="/") || (se2!="/")){
		ok=false;
	}
			
	if ( isNaN(dia) || isNaN(mes) || isNaN(ano) ) {
		ok=false;
	}
	
	n_dia=dia;
	n_mes=mes-1;
	n_ano=ano;
									
	if ((n_ano%4)==0){
		mesos[1]=29;
	}
	
	if ((n_dia<1) || (n_dia>mesos[n_mes])){
		ok=false;
	}
	
	if ((n_mes+1<1) || (n_mes+1>12)){
		ok=false;
	}
	
	if ( (n_ano==0) || (n_ano=="") ){
		ok=false;
	}
	
	return ok;
	
}

function test_mail(camp){
	camp.toLowerCase();
	sw_pas=true;
	if (camp==""){
		sw_pas=false;
	}else{
		if ((camp.indexOf("@")==-1) || (camp.indexOf(" ")!=-1) || (camp.indexOf(".")==-1)){
			sw_pas=false;
		}else{
			if (camp.length<6){
				sw_pas=false;
			}
		}
	}
	return sw_pas;
}

var v_fin;

//obri popup
function obrir_popup(url,f_amp,f_alt,nom_finestra){
	ancho=screen.width;				//ample pantalla
	alto=screen.height;				//alt pantalla
	v_top=(alto-f_alt)/2;	
	v_left=(ancho-f_amp)/2;
	
	if (typeof(v_fin)!="undefined"){
		v_fin.close();
	
	}
	
	v_fin=window.open(url,nom_finestra,"toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width="+f_amp+",height="+f_alt+",top="+v_top+",left="+v_left);
}

function getOffsetLeft (el) {
	  var ol = el.offsetLeft;
	  while ((el = el.offsetParent) != null)
	    ol += el.offsetLeft;
	  return ol;
	}
	
function getOffsetTop (el) {
  var ot = el.offsetTop;
  while((el = el.offsetParent) != null)
	   ot += el.offsetTop;
  return ot;
}

function coor(ele,prop){
	aux=0;
	var dom=(!document.all && document.getElementById) ? true : false;
	//ie
	if (document.all) {
		t=eval("document.images['"+ele+"']");
		if (prop=="x"){
			aux=getOffsetLeft(t);
		}
		if (prop=="y"){
			aux=getOffsetTop(t);
		}
	}
	//ns4 i ns6
	if ((document.layers) || (dom) ) {
		var t=document.images[ele];
		if (prop=="x"){
			aux=t.x;
		}
		if (prop=="y"){
			aux=t.y;
		}
	}
	return aux;
}

function setPointer(theRow, thePointerColor){
    if (typeof(theRow.style) == 'undefined' || typeof(theRow.cells) == 'undefined') {
        return false;
    }
	var row_cells_cnt = theRow.cells.length-1;
    for (var c = 0; c < row_cells_cnt; c++) {
        theRow.cells[c].bgColor = thePointerColor;
    }
	
	return true;
}

function rollover(numer,sw_flag){
	if (!ns4){
		if (sw_flag==1){
			MM_swapImage("curva"+numer,'','barra_lat/curva_o.gif',1);
			MM_swapImage("fletxa"+numer,'','barra_lat/fletxa_o.gif',1);
		}else{
			MM_swapImage("curva"+numer,'','barra_lat/curva.gif',1);
			MM_swapImage("fletxa"+numer,'','barra_lat/fletxa.gif',1);
			//MM_swapImgRestore();
		}
	}
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.0
  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 && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments;
  document.MM_sr=new Array;
  for(i=0;i<(a.length-2);i+=3)
  	if ((x=MM_findObj(a[i]))!=null){
		document.MM_sr[j++]=x; 
			if(!x.oSrc) 
				x.oSrc=x.src; x.src=a[i+2];}
}