var dom = (document.getElementById) ? true : false;
  var ff1 = ((navigator.userAgent.indexOf("Firefox")>-1) && dom) ? true: false;
  var ns5 = ((navigator.userAgent.indexOf("Gecko")>-1) && dom) ? true: false;
  var ie5 = ((navigator.userAgent.indexOf("MSIE")>-1) && dom) ? true : false;
  var ns4 = (document.layers && !dom) ? true : false;
  var ie4 = (document.all && !dom) ? true : false;
  var nodyn = (!ns5 && !ns4 && !ie4 && !ie5) ? true : false;



//if checkbox of any adminOpt is checked -> the others will be unchecked
function useAdminOption(adminOpt){

			if(adminOpt == 'messageState110' && document.getElementById('messageState110').checked == true)
			{	
				document.getElementById('messageState010').checked = false;
				document.getElementById('messageState020').checked = false;
				document.getElementById('messageState030').checked = false;
				document.getElementById('messageState040').checked = false;
				document.getElementById('messageState050').checked = false;
				document.getElementById('messageState060').checked = false;
				document.getElementById('messageState120').checked = false;
				document.getElementById(adminOpt).checked = true;
			}
			if(adminOpt == 'messageState120' && document.getElementById('messageState120').checked == true)
			{	
				document.getElementById('messageState010').checked = false;
				document.getElementById('messageState020').checked = false;
				document.getElementById('messageState030').checked = false;
				document.getElementById('messageState040').checked = false;
				document.getElementById('messageState050').checked = false;
				document.getElementById('messageState060').checked = false;
				document.getElementById('messageState110').checked = false;
				document.getElementById(adminOpt).checked = true;
			}

			if(adminOpt == 'messageState010' && document.getElementById('messageState010').checked == true)
			{	
				document.getElementById('messageState020').checked = false;
				document.getElementById('messageState030').checked = false;
				document.getElementById('messageState040').checked = false;
				document.getElementById('messageState110').checked = false;
				document.getElementById('messageState120').checked = false;
				document.getElementById(adminOpt).checked = true;
			}

			if(adminOpt == 'messageState020' && document.getElementById('messageState020').checked == true)
			{	
				document.getElementById('messageState010').checked = false;
				document.getElementById('messageState030').checked = false;
				document.getElementById('messageState040').checked = false;
				document.getElementById('messageState110').checked = false;
				document.getElementById('messageState120').checked = false;
				document.getElementById(adminOpt).checked = true;
			}

			if(adminOpt == 'messageState030' && document.getElementById('messageState030').checked == true)
			{	
				document.getElementById('messageState010').checked = false;
				document.getElementById('messageState020').checked = false;
				document.getElementById('messageState040').checked = false;
				document.getElementById('messageState110').checked = false;
				document.getElementById('messageState120').checked = false;
				document.getElementById(adminOpt).checked = true;
			}

			if(adminOpt == 'messageState040' && document.getElementById('messageState040').checked == true)
			{	
				document.getElementById('messageState010').checked = false;
				document.getElementById('messageState020').checked = false;
				document.getElementById('messageState030').checked = false;
				document.getElementById('messageState110').checked = false;
				document.getElementById('messageState120').checked = false;
				document.getElementById(adminOpt).checked = true;
			}

			if(adminOpt == 'messageState050' && document.getElementById('messageState050').checked == true)
			{	
				document.getElementById('messageState060').checked = false;
				document.getElementById('messageState110').checked = false;
				document.getElementById('messageState120').checked = false;
				document.getElementById(adminOpt).checked = true;
			}
			
			if(adminOpt == 'messageState060' && document.getElementById('messageState060').checked == true)
			{	
				document.getElementById('messageState050').checked = false;
				document.getElementById('messageState110').checked = false;
				document.getElementById('messageState120').checked = false;
				document.getElementById(adminOpt).checked = true;
			}
			
			if(adminOpt == 'messageState070' && document.getElementById('messageState070').checked == true) {
				document.getElementById('messageState080').checked = false;		
				document.getElementById(adminOpt).checked = true;
			}
			if(adminOpt == 'messageState080' && document.getElementById('messageState080').checked == true) {
				document.getElementById('messageState070').checked = false;								
				document.getElementById(adminOpt).checked = true;							
			}
			if(adminOpt == 'messageState090' && document.getElementById('messageState090').checked == true)
			{	
				document.getElementById('messageState100').checked = false;				
				document.getElementById(adminOpt).checked = true;
			}
			if(adminOpt == 'messageState100' && document.getElementById('messageState100').checked == true)
			{	
				document.getElementById('messageState090').checked = false;
				document.getElementById(adminOpt).checked = true;
			}			
			 
			if(adminOpt.indexOf("Message010") > -1 && document.getElementById(adminOpt).checked == true)
			{	
				deselectEastWestAllCheckboxesForIndex('010');
				document.getElementById(adminOpt).checked = true;
			}
			if(adminOpt.indexOf("Message020") > -1 && document.getElementById(adminOpt).checked == true)
			{	
				deselectEastWestAllCheckboxesForIndex('020');
				document.getElementById(adminOpt).checked = true;
			}
			if(adminOpt.indexOf("Message030") > -1 && document.getElementById(adminOpt).checked == true)
			{	
				deselectEastWestAllCheckboxesForIndex('030');
				document.getElementById(adminOpt).checked = true;
			}
			if(adminOpt.indexOf("Message040") > -1 && document.getElementById(adminOpt).checked == true)
			{	
				deselectEastWestAllCheckboxesForIndex('040');
				document.getElementById(adminOpt).checked = true;
			}
			if(adminOpt.indexOf("Message050") > -1 && document.getElementById(adminOpt).checked == true)
			{	
				deselectEastWestAllCheckboxesForIndex('050');
				document.getElementById(adminOpt).checked = true;
			}
			if(adminOpt.indexOf("Message060") > -1 && document.getElementById(adminOpt).checked == true)
			{	
				deselectEastWestAllCheckboxesForIndex('060');
				document.getElementById(adminOpt).checked = true;
			}
			if(adminOpt.indexOf("Message110") > -1 && document.getElementById(adminOpt).checked == true)
			{	
				deselectEastWestAllCheckboxesForIndex('110');
				document.getElementById(adminOpt).checked = true;
			}
			if(adminOpt.indexOf("Message120") > -1 && document.getElementById(adminOpt).checked == true)
			{	
				deselectEastWestAllCheckboxesForIndex('120');
				document.getElementById(adminOpt).checked = true;
			}
						
	
			if( (adminOpt == 'cityAll15Message010' && document.getElementById('cityAll15Message010').checked == true) 
				|| (adminOpt == 'cityEast16Message010' && document.getElementById('cityEast16Message010').checked == true)
				|| (adminOpt == 'cityWest17Message010' && document.getElementById('cityWest17Message010').checked == true) ) {	

				deselectAllCheckboxesForIndex('010');
				document.getElementById(adminOpt).checked = true;
			}			

			if( (adminOpt == 'cityAll15Message020' && document.getElementById('cityAll15Message020').checked == true)
				|| (adminOpt == 'cityEast16Message020' && document.getElementById('cityEast16Message020').checked == true)
				|| (adminOpt == 'cityWest17Message020' && document.getElementById('cityWest17Message020').checked == true) ) {

				deselectAllCheckboxesForIndex('020');
				document.getElementById(adminOpt).checked = true;
			}

			if( (adminOpt == 'cityAll15Message030' && document.getElementById('cityAll15Message030').checked == true)
				|| (adminOpt == 'cityEast16Message030' && document.getElementById('cityEast16Message030').checked == true)
				|| (adminOpt == 'cityWest17Message030' && document.getElementById('cityWest17Message030').checked == true) ) {
	
				deselectAllCheckboxesForIndex('030');
				document.getElementById(adminOpt).checked = true;
			}

			if( (adminOpt == 'cityAll15Message040' && document.getElementById('cityAll15Message040').checked == true)
				|| (adminOpt == 'cityEast16Message040' && document.getElementById('cityEast16Message040').checked == true)
				|| (adminOpt == 'cityWest17Message040' && document.getElementById('cityWest17Message040').checked == true) ) {
			
				deselectAllCheckboxesForIndex('040');
				document.getElementById(adminOpt).checked = true;
			}

			if( (adminOpt == 'cityAll15Message050' && document.getElementById('cityAll15Message050').checked == true)
				|| (adminOpt == 'cityEast16Message050' && document.getElementById('cityEast16Message050').checked == true)
				|| (adminOpt == 'cityWest17Message050' && document.getElementById('cityWest17Message050').checked == true) ) {
			
				deselectAllCheckboxesForIndex('050');
				document.getElementById(adminOpt).checked = true;
			}
			
			if( (adminOpt == 'cityAll15Message060' && document.getElementById('cityAll15Message060').checked == true)
				|| (adminOpt == 'cityEast16Message060' && document.getElementById('cityEast16Message060').checked == true)
				|| (adminOpt == 'cityWest17Message060' && document.getElementById('cityWest17Message060').checked == true) ) {
				
				deselectAllCheckboxesForIndex('060');
				document.getElementById(adminOpt).checked = true;
			}
			
			if( (adminOpt == 'cityAll15Message110' && document.getElementById('cityAll15Message110').checked == true)
				|| (adminOpt == 'cityEast16Message110' && document.getElementById('cityEast16Message110').checked == true)
				|| (adminOpt == 'cityWest17Message110' && document.getElementById('cityWest17Message110').checked == true) ) {
				
				deselectAllCheckboxesForIndex('110');
				document.getElementById(adminOpt).checked = true;
			}
			
			if( (adminOpt == 'cityAll15Message120' && document.getElementById('cityAll15Message120').checked == true)
				|| (adminOpt == 'cityEast16Message120' && document.getElementById('cityEast16Message120').checked == true)
				|| (adminOpt == 'cityWest17Message120' && document.getElementById('cityWest17Message120').checked == true) ) {
				
				deselectAllCheckboxesForIndex('120');
				document.getElementById(adminOpt).checked = true;
			}
	
}

function deselectEastWestAllCheckboxesForIndex(index) {
	document.getElementById('cityAll15Message'+index).checked = false;
	document.getElementById('cityEast16Message'+index).checked = false;
	document.getElementById('cityWest17Message'+index).checked = false;
}

function deselectAllCheckboxesForIndex(index) {

	document.getElementById('cityBo01Message' + index).checked = false;
	document.getElementById('cityBot02Message' + index).checked = false;
	document.getElementById('cityDo03Message' + index).checked = false;
	document.getElementById('cityDu04Message' + index).checked = false;
	document.getElementById('cityE05Message' + index).checked = false;
	document.getElementById('cityEn06Message' + index).checked = false;
	document.getElementById('cityGe07Message' + index).checked = false;
	document.getElementById('cityHa08Message' + index).checked = false;
	document.getElementById('cityHam09Message' + index).checked = false;
	document.getElementById('cityHer10Message' + index).checked = false;
	document.getElementById('cityMh11Message' + index).checked = false;
	document.getElementById('cityOb12Message' + index).checked = false;
	document.getElementById('cityRe13Message' + index).checked = false;
	document.getElementById('cityUN131Message' + index).checked = false;
	document.getElementById('cityWes14Message' + index).checked = false;
	document.getElementById('cityAll15Message' + index).checked = false;
	document.getElementById('cityEast16Message' + index).checked = false;	
	document.getElementById('cityWest17Message' + index).checked = false;	

}

function CheckLen(target)
{
   var maxlength = "1000"; //die maximale Zeichenlänge

   StrLen = target.value.length;

   if (StrLen==1&&target.value.substring(0,1)==" "){
      target.value="";
      StrLen=0;
   }

   if (StrLen>maxlength ) {
      target.value=target.value.substring(0,maxlength);
      CharsLeft=0;
   } else {
      CharsLeft=maxlength-StrLen;
   }
   // document.mailForm.anzahl.value=CharsLeft;
}