var fixable_png_array = new Array();

function add_png_to_fix(class_name)
{
	fixable_png_array.push(class_name);
}

function png_fix()
{
	if (!(/MSIE/.test(navigator.userAgent))){ 
		for (i=0;i<fixable_png_array.length;i++) $('.'+fixable_png_array[i]).attr('class',fixable_png_array[i]+'_FF');		
	}
}


function isValidEmail(email, required) {
    if (required==undefined) {   // if not specified, assume it's required
        required=true;
    }
    if (email==null) {
        if (required) {
            return false;
        }
        return true;
    }
    if (email.length==0) {  
        if (required) {
            return false;
        }
        return true;
    }
    if (! allValidChars(email)) {  // check to make sure all characters are valid
        return false;
    }
    if (email.indexOf("@") < 1) { //  must contain @, and it must not be the first character
        return false;
    } else if (email.lastIndexOf(".") <= email.indexOf("@")) {  // last dot must be after the @
        return false;
    } else if (email.indexOf("@") == email.length) {  // @ must not be the last character
        return false;
    } else if (email.indexOf("..") >=0) { // two periods in a row is not valid
	return false;
    } else if (email.indexOf(".")+1 == email.length) {  // . must not be the last character
	return false;
    }
    return true;
	}
function allValidChars(email) {
	  var parsed = true;
	  var validchars = "abcdefghijklmnopqrstuvwxyz0123456789@.-_";
	  for (var i=0; i < email.length; i++) {
		var letter = email.charAt(i).toLowerCase();
		if (validchars.indexOf(letter) != -1)
		  continue;
		parsed = false;
		break;
	  }
	  return parsed;
	}
	
function reload_contact_form()
{	
	$('#inner_box').load('jax/kontaktformular_load.jax.php', $('#form1').serializeArray()); 
}

function findPos(obj) {
	var curleft = curtop = 0;
	if (obj.offsetParent) {
		curleft = obj.offsetLeft
		curtop = obj.offsetTop
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
	}
	return [curleft,curtop];
}


function recToFriend(page, obj)
{
var p = findPos(obj);
$('#actionBox').css("top",p[1]-330+"px");
$('#actionBox').css("left",30+"px");
$('#actionBox').css('display', 'block');
$('#actionBox').load('jax/tellToFriend.jax.php', { 'page':page}); 
}


function printPage(print_page){
	popup = window.open( print_page, 'print', 'toolbar=no,scrollbars=yes,location=no,statusbar=no,menubar=no,resizable=yes,width=' + '710' + ', height=' + '900'  );
}

function modify_width (wid)
{
	$('#main_image_div').css('width',wid+'px');
	txtwidth = 657 - wid;
	$('#txt_div').css ('width', txtwidth+'px');
}