// Browserabfragen

var macie = false;
if (navigator.userAgent.indexOf("Mac") != -1 && navigator.userAgent.indexOf("MSIE") != -1) macie = true;

var safari = false;
if (navigator.userAgent.indexOf("Safari") != -1) safari = true;

var nn4 = false;
if (navigator.appName.indexOf("Netscape") != -1 && navigator.appVersion.substring(0,1) < 5) nn4 = true;

var nn6 = false;
if (navigator.userAgent.indexOf("Netscape6") != -1) nn6 = true;

var mozilla = false;
if (navigator.userAgent.indexOf("Mozilla") != -1 && navigator.appVersion.substring(0,1) >= 5) mozilla = true;


// Bildpreload zur Vermeidung des IE6-Bugs

blindGif = new Image; blindGif.src = "_gfx/1px.gif";
diagCol = new Image; diagCol.src = "_gfx/diag_col.gif";
diagTopcol = new Image; diagTopcol.src = "_gfx/diag_topcol.gif";


// Button-Preload

bt_home_pas = new Image; bt_home_pas.src = "_gfx/menu/bt_home_p.gif";
bt_home_ovr = new Image; bt_home_ovr.src = "_gfx/menu/bt_home_o.gif";

bt_anmelden_pas = new Image; bt_anmelden_pas.src = "_gfx/menu/bt_anmelden_p.gif";
bt_anmelden_ovr = new Image; bt_anmelden_ovr.src = "_gfx/menu/bt_anmelden_o.gif";

bt_gaeste_pas = new Image; bt_gaeste_pas.src = "_gfx/menu/bt_gaeste_p.gif";
bt_gaeste_ovr = new Image; bt_gaeste_ovr.src = "_gfx/menu/bt_gaeste_o.gif";

bt_statistik_pas = new Image; bt_statistik_pas.src = "_gfx/menu/bt_statistik_p.gif";
bt_statistik_ovr = new Image; bt_statistik_ovr.src = "_gfx/menu/bt_statistik_o.gif";

bt_kontakt_pas = new Image; bt_kontakt_pas.src = "_gfx/menu/bt_kontakt_p.gif";
bt_kontakt_ovr = new Image; bt_kontakt_ovr.src = "_gfx/menu/bt_kontakt_o.gif";

bt_impressum_pas = new Image; bt_impressum_pas.src = "_gfx/menu/bt_impressum_p.gif";
bt_impressum_ovr = new Image; bt_impressum_ovr.src = "_gfx/menu/bt_impressum_o.gif";

bt_mdavid_pas = new Image; bt_mdavid_pas.src = "_gfx/menu/bt_mdavid_p.gif";
bt_mdavid_ovr = new Image; bt_mdavid_ovr.src = "_gfx/menu/bt_mdavid_o.gif";

bt_info_pas = new Image; bt_info_pas.src = "_gfx/menu/bt_info_p.gif";
bt_info_ovr = new Image; bt_info_ovr.src = "_gfx/menu/bt_info_o.gif";

bt_bearbeiten_pas = new Image; bt_bearbeiten_pas.src = "_gfx/menu/bt_bearbeiten_p.gif";
bt_bearbeiten_ovr = new Image; bt_bearbeiten_ovr.src = "_gfx/menu/bt_bearbeiten_o.gif";

bt_ok_pas = new Image; bt_ok_pas.src = "_gfx/menu/bt_ok_p.gif";
bt_ok_ovr = new Image; bt_ok_ovr.src = "_gfx/menu/bt_ok_o.gif";

bt_zurueck_pas = new Image; bt_zurueck_pas.src = "_gfx/menu/bt_zurueck_p.gif";
bt_zurueck_ovr = new Image; bt_zurueck_ovr.src = "_gfx/menu/bt_zurueck_o.gif";


// Funktionen zum Umschalten der Buttons

function ovr(imgName,delID) {
	var dontChange = false;
	if (imgName.substring(0,7) == "bt_info") {
		var changeTo = "bt_info";
	}
	else {
		if (imgName.substring(0,9) == "bt_delete") {
			var changeTo = "bt_delete";
			if (delID) {
				if (document.formular[delID].value == 1) {
					dontChange = true;
				}
			}
		}
		else {
			var changeTo = imgName;
		}
	}
	if (imgName != 'bt_home' && dontChange == false) {
		if (document.all || nn6 == true) {
			document.all[imgName].src = eval(changeTo + "_ovr.src");
		}
		else {
			document.images[imgName].src = eval(changeTo + "_ovr.src");
		}
	}
}

function pas(imgName,delID) {
	var dontChange = false;
	if (imgName.substring(0,7) == "bt_info") {
		var changeTo = "bt_info";
	}
	else {
		if (imgName.substring(0,9) == "bt_delete") {
			var changeTo = "bt_delete";
			if (delID) {
				if (document.formular[delID].value == 1) {
					dontChange = true;
				}
			}
		}
		else {
			var changeTo = imgName;
		}
	}
	if (imgName != 'bt_home' && dontChange == false) {
		if (document.all || nn6 == true) {
			document.all[imgName].src = eval(changeTo + "_pas.src");
		}
		else {
			document.images[imgName].src = eval(changeTo + "_pas.src");
		}
	}
}


// Delete-Schalter

function delswitch(fileID,imgName) {
	if (document.formular[fileID].value == 1) {
		document.formular[fileID].value = 0;
		if (document.all || nn6 == true) {
			document.all[imgName].src = bt_delete_ovr.src;
		}
		else {
			document.images[imgName].src = bt_delete_ovr.src;
		}
	}
	else {
		document.formular[fileID].value = 1;
		if (document.all || nn6 == true) {
			document.all[imgName].src = bt_delete_akt.src;;
		}
		else {
			document.images[imgName].src = bt_delete_akt.src;;
		}
	}
}


// Statusanzeige

window.defaultStatus = ":: mailight ::";

function statustext(text) {
	window.status = ":: mailight - " + text + " ::";
}


// Funktion fuer die Input-Felder und das Texteingabefeld

function inputField(formname,name,value,opttxt,title,laenge,maxlaenge) {
		if (opttxt=="passwd") {
			fieldtype = 'password';
			optMeldung = ' class=\"whitebg\"';
		} else {
			fieldtype = 'text';
			if (opttxt) {
				optMeldung = ' onfocus=\"if (document.'+formname+'.'+name+'.value==\''+opttxt+'\') document.'+formname+'.'+name+'.value=\'\';\" onblur=\"if (document.'+formname+'.'+name+'.value==\'\') document.'+formname+'.'+name+'.value=\''+opttxt+'\';\"';
			} else {
				optMeldung = '';
			}
		}

		if (macie == true) { laenge = Math.ceil(laenge*0.75); }
		else { if (safari == true) { laenge = Math.ceil(laenge*0.78); }
			else { if (nn6 == true) { laenge = Math.ceil(laenge*0.56); }
				else { if (mozilla) { laenge = laenge; }
					else { if (document.all) { laenge = laenge; }
					   else { laenge = Math.ceil(laenge*0.62); }
					}
				}
			}
		}

		document.write ('<input type=\''+fieldtype+'\' size=\''+laenge+'\' maxlength=\''+maxlaenge+'\' name=\''+name+'\' value=\''+value+'\''+optMeldung+' title=\''+title+'\'>')
}

function textArea(areaName,cols,rows) {
		if (!cols) cols = 36;
		if (!rows) rows = 9;

		if (macie == true) { cols = Math.ceil(cols*0.7); }
		else { if (safari == true) { cols = Math.ceil(cols*0.85); }
			else { if (nn6 == true) { cols = Math.ceil(cols*0.547); }
				else { if (mozilla) { cols = Math.ceil(cols*0.96); }
					else { if (document.all) { cols = cols; }
					   else { cols = Math.ceil(cols*0.547); }
					}
				}
			}
		}

		document.write ('<textarea cols=\''+cols+'\' rows=\''+rows+'\' wrap=\'physical\' name=\''+areaName+'\'>')
}