window.onload = function() {

 $('anzahl').onblur = function(){
						
							if( $('anzahl').value != '') {
								chkZ = 1;
								numbLa = $('anzahl').value;
								
								for(i=0;i<numbLa.length;++i){
									
									if(numbLa.charAt(i) < "0" || numbLa.charAt(i) > "9"){
										$('label1').style.color = "red";
										chkZ = -1;
										break;
									}
								}
								
								if(chkZ == 1){
									$('label1').style.color = "#333333";
								}
							}
							else{
								$('label1').style.color = "red";
							}
							
						}
						$('firma').onblur = function(){
							if($('firma').value == ''  || $('firma').value.length < 2) {
								document.getElementById('label2').style.color = "red";
							}
							else{
								$('label2').style.color = "#333333";
							}
							
						}
						$('name').onblur = function(){
							if($('name').value == ''  || $('name').value.length < 2) {
								document.getElementById('label3').style.color = "red";
							}
							else{
								$('label3').style.color = "#333333";
							}
							
						}
						$('strasse').onblur = function(){
							if($('strasse').value == ''  || $('strasse').value.length < 2) {
								document.getElementById('label4').style.color = "red";
							}
							else{
								$('label4').style.color = "#333333";
							}
							
						}
						$('plz').onblur = function(){
							if($('plz').value == ''  || $('plz').value.length < 2) {
								document.getElementById('label5').style.color = "red";
							}
							else{
								$('label5').style.color = "#333333";
							}
							
						}
						$('tel').onblur = function(){
							if($('tel').value == ''  || $('tel').value.length < 2) {
								document.getElementById('label6').style.color = "red";
							}
							else{
								$('label6').style.color = "#333333";
							}
							
						}
						$('email').onblur = function(){
							if(!$('email').value) {
								$('label8').style.color = "red";
							}
							else{
								var emails = $('email').value
								var datePat = /^[A-z0-9][\w.-]*@[A-z0-9-\.]+\.[A-z0-9]{2,6}$/;
								if(emails.search(datePat)){
									$('label8').style.color = "red";
								}
								else{
									$('label8').style.color = "#333333";
								}
							}
							
						}
						
							
						$('bestellung').onsubmit = function(){
							var fehler = 0;
							
							
							
							if( $('anzahl').value != '') {
								chkZ = 1;
								numbLa = $('anzahl').value;
								
								for(i=0;i<numbLa.length;++i){
									
									if(numbLa.charAt(i) < "0" || numbLa.charAt(i) > "9"){
										$('label1').style.color = "red";
										chkZ = -1;
										fehler = 1;
										break;
									}
								}
								
								if(chkZ == 1){
									$('label1').style.color = "#333333";
								}
							}
							else{
								$('label1').style.color = "red";
							}
							
							if($('firma').value == ''  || $('firma').value.length < 2) {
								$('label2').style.color = "red";
								fehler = 1;
							}
							else{
								$('label2').style.color = "#333333";
							}
							
							if($('name').value == ''  || $('name').value.length < 2) {
								$('label3').style.color = "red";
								fehler = 1;
							}
							else{
								$('label3').style.color = "#333333";
							}
							
							if($('strasse').value == ''  || $('strasse').value.length < 2) {
								$('label4').style.color = "red";
								fehler = 1;
							}
							else{
								$('label4').style.color = "#333333";
							}
							
							if($('plz').value == ''  || $('plz').value.length < 2) {
								$('label5').style.color = "red";
								fehler = 1;
							}
							else{
								$('label5').style.color = "#333333";
							}
							
							if($('tel').value == ''  || $('tel').value.length < 2) {
								$('label6').style.color = "red";
								fehler = 1;
							}
							else{
								$('label6').style.color = "#333333";
							}
							if(!$('email').value) {
								$('label8').style.color = "red";
								fehler = 1;
							}
							else{
								var emails = $('email').value
								var datePat = /^[A-z0-9][\w.-]*@[A-z0-9-\.]+\.[A-z0-9]{2,6}$/;
								if(emails.search(datePat)){
									$('label8').style.color = "red";
									fehler = 1;
								}
								else{
									$('label8').style.color = "#333333";
								}
						} 
						
						if(  fehler != 0 ){
								$('fehler').innerHTML = 'Bitte alle * Pflichtfelder ausf&uuml;llen<br />';
								return false;
							}
							
						}
						
	externalLinks();
    $('gesamt').style.height = window.getScrollHeight()+'px';
    
}



window.onunload = function(){
	  
}

function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i < anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
     anchor.target = "_blank";
 }
}

window.addEvent('resize', function() {
	$('gesamt').style.height = window.getScrollHeight()+'px';						   
});


function changeNavBild(bild){
	document.getElementById('bildinnav').innerHTML = '<img src="'+bild+'" alt="" />';
}