// JavaScript Document
function showMe(id)
{
	document.getElementById(id).style.visibility="visible";
}
/*********************/
function hideMe(id)
{
	document.getElementById(id).style.visibility="hidden";
}
/*********************/
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_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_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_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];}
}
/*********************/

function checkEmail()
{
	var email =document.getElementById("semail").value;
	var res=emailString(email);
	var fieldEmpty = checkEmptyField();
	if(fieldEmpty==true)
	{
		alert("Alle Felder sind leer!");
		document.getElementById("emailLayer").style.visibility="visible";
	}
	else
	{
		if(res==true)
		{
			document.getElementById("formOK").value="OK";
			document.emailformular.submit();
		}
		else
		{
			document.getElementById("formOK").value="bad";
			alert("Keine gültige Email-Addresse.");
			document.getElementById("emailLayer").style.visibility="visible";
		}
	}
}
/*********************/
function emailString(s)
{
	var a = false;
	var res = false;
	if(typeof(RegExp) == 'function')
	{
		var b = new RegExp('abc');
		if(b.test('abc') == true)
		{
			a = true;
		}
	}
	
	if(a == true)
	{
		reg = new RegExp('^([a-zA-Z0-9\\-\\.\\_]+)'+'(\\@)([a-zA-Z0-9\\-\\.]+)'+'(\\.)([a-zA-Z]{2,4})$');
		res = (reg.test(s));
	}
	else
	{
		res = (s.search('@') >= 1 && s.lastIndexOf('.') > s.search('@') && s.lastIndexOf('.') >= s.length-5)
	}
	return(res);
}
/*********************/
function refreshMe()
{//delete all fields values
	var e = document.forms[0].elements;
	for (var i=0; i<e.length; i++)
	{
		if(e[i].type=="select-one")
		{
			e[i].value="";
		}
		else if(e[i].type=="radio")
		{
		 	e[i].checked=false;
		}
		else if(e[i].type=="button" || e[i].type=="submit" || e[i].type=="hidden")
		{
			e[i].value=e[i].value;
		}
		else
		{
			e[i].value="";
		}
	}
}
/*********************/
function checkEmptyField()
{//check empty fields 
	var e = document.forms[0].elements;
	var field_is_empty =true;
	for (var i=0; i<e.length; i++)
	{
		if( e[i].type=="text"  || e[i].type=="textarea")
		{
				if( e[i].value!="")
				{
					 field_is_empty =false;
				}
		}
	}
	return field_is_empty;
}
/*********************/