//***********************************//
// www.extrenet.com                  //
// master javascript functions file  //
//***********************************//

//preloading and rollover of navigation menu
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) { //v3.0
  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); 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];}
}
//end preloading

//*****************//
// opening windows
//*****************//
function openWindow(htmlFile,windowWidth,windowHeight) {
  windowProperties='width='+windowWidth+',height='+windowHeight+',scrolling="no",resize="no"'
  newWin = window.open(htmlFile,'fotos',windowProperties);
}


//*****************************//
// check the Navigator version
//*****************************//
var agt=navigator.userAgent.toLowerCase();

var isNS = (navigator.appName=="Netscape");
var isIE = (navigator.appName=="Microsoft Internet Explorer");
var isNS6 = (document.getElementById && !isIE) ? true : false;

var browserMajorVersion = parseInt(navigator.appVersion);
var browserMinorVersion = parseFloat(navigator.appVersion);

var isMac = (navigator.platform.indexOf("Mac")!=-1);

var isMacIE5 = (isIE && isMac && (browserMajorVersion = 5));
var WM_startTagFix = '</';
var msie_windows = 0;
if (isIE && (agt.indexOf('win')!=-1)){
  msie_windows = 1;
  document.writeln('<script language="VBscript">');
  document.writeln('Dim WM_detect_through_vb');
  document.writeln('WM_detect_through_vb = 0');
  document.writeln('If ScriptEngineMajorVersion >= 2 then');
  document.writeln('  WM_detect_through_vb = 1');
  document.writeln('End If');
  document.writeln('Function WM_activeXDetect(activeXname)');
  document.writeln('  on error resume next');
  document.writeln('  If ScriptEngineMajorVersion >= 2 then');
  document.writeln('     WM_activeXDetect = False');
  document.writeln('     WM_activeXDetect = IsObject(CreateObject(activeXname))');
  document.writeln('     If (err) then');
  document.writeln('        WM_activeXDetect = False');
  document.writeln('     End If');
  document.writeln('   Else');
  document.writeln('     WM_activeXDetect = False');
  document.writeln('   End If');
  document.writeln('End Function');
  document.writeln(WM_startTagFix+'script>');
}



function WM_pluginDetect(plugindescription, pluginxtension, pluginmime, activeXname, pluginver){
  var i,plugin_undetectable=0,detected=0, daPlugin=new Object();
  if (msie_windows && WM_detect_through_vb){
      plugin_undetectable = 0;
  } else {
      plugin_undetectable = 1;
  }
  if(navigator.plugins) {
      numPlugins = navigator.plugins.length;
      if (numPlugins > 1) {
       if (navigator.mimeTypes && navigator.mimeTypes[pluginmime] && navigator.mimeTypes[pluginmime].enabledPlugin && (navigator.mimeTypes[pluginmime].suffixes.indexOf(pluginxtension) != -1)) { 
           if (isNS && (navigator.appVersion.indexOf('4.0') != -1)) { 
            for(i in navigator.plugins) {
                if ((navigator.plugins[i].description.indexOf(plugindescription) != -1) || (i.indexOf(plugindescription) != -1)) { 
                 detected=1;
                 break;
                }
            }
           } else {
            for (i = 0; i < numPlugins; i++) {
                daPlugin = navigator.plugins[i];
                if ((daPlugin.description.indexOf(plugindescription) != -1) || (daPlugin.name.indexOf(plugindescription) != -1)) {
                 if(pluginver!="") if(daPlugin.description.indexOf(pluginver)!=-1) { detected=1; break; }
                 detected=1;
                 break;
                }
            }
           }

      if (navigator.mimeTypes[pluginmime] == null) {
            detected = 0;
           }
       }
       return detected;
      } else if((msie_windows == 1) && !plugin_undetectable){
       return WM_activeXDetect(activeXname);
      } else {           
       return 0;
      }
  } else {
      return 0;
  }
}

var userScreenWidth = screen.width;
var userScreenHeight = screen.height;
var browserWidth = (isNS) ? window.innerWidth : 0;
var browserHeight = (isNS) ? window.innerHeight : 0;

// Check for flash
var isFlash4 = WM_pluginDetect('Flash', 'swf', 'application/x-shockwave-flash', 'ShockwaveFlash.ShockwaveFlash.4','4');

// Check for shockwave
var isShockwave7 = WM_pluginDetect('Shockwave', 'dcr', 'application/x-director', 'SWCtl.SWCtl.1','7');
//*****************************//
// end checking the Navigator version
//*****************************//




//*****************************//
// valid email
//*****************************//
function submitIt(webform) {
	// Name
	if (webform.name.value == "") {
		alert("Es necesario que rellene el campo nombre")
		webform.name.focus()
		return false
	}

	if (webform.recipient.value == "") {
		alert("Debe especificar a quien va dirigido este mensaje")
		webform.recipient.focus()
		return false
	}
			
			
	// check to see if the email's valid
	if (!validEmail(webform.email.value)) {
		alert("Su direcci&oacute;n de email es inv&aacute;lida.")
		webform.email.focus()
		webform.email.select()
		return false
	}
	// If we made it to here, everything's valid, so return true
	return true;
}

function validEmail(Email) {
	invalidChars = " /:,;"
	if (Email == "") {						// cannot be empty
		return false;
	}
	for (i=0; i<invalidChars.length; i++) {	// does it contain any invalid characters?
		badChar = invalidChars.charAt(i)
		if (Email.indexOf(badChar,0) > -1) {
			return false;
		}
	}
	atPos = Email.indexOf("@",1)			// there must be one "@" symbol
	if (atPos == -1) {
		return false;
	}
	if (Email.indexOf("@",atPos+1) != -1) {	// and only one "@" symbol
		return false;
	}
	periodPos = Email.indexOf(".",atPos)
	if (periodPos == -1) {					// and at least one "." after the "@"
		return false;
	}
	if (periodPos+3 > Email.length)	{		// must be at least 2 characters after the "."
		return false;
	}
	return true;
}