function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){		   
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    return false
		 }

 		 return true					
}

function validateZIP(field) {
	var valid = "0123456789-";
	var hyphencount = 0;

	if (field.length!=5 && field.length!=10) {
		alert("Please enter your 5 digit or 5 digit+4 zip code.");
		return false;
	}
	for (var i=0; i < field.length; i++) {
		temp = "" + field.substring(i, i+1);
		if (temp == "-") 
			hyphencount++;
		if (valid.indexOf(temp) == "-1") {
			alert("Invalid characters in your zip code.  Please try again.");
			return false;
		}
		if ((hyphencount > 1) || ((field.length==10) && ""+field.charAt(5)!="-")) {
			alert("The hyphen character should be used with a properly formatted 5 digit+four zip code, like '12345-6789'.   Please try again.");
			return false;
   	}
	}
return true;
}


function validateForm(){
	var has_errors = 0;
	var error_message = '';

	var name = document.getElementById("contactForm").f_name;
	if((name.value==null) || (name.value=="")){
		document.getElementById("l_name").style.color =  "red";
		name.className = "formObjectError";
		if(has_errors == 0){
			error_message = "Bitte geben Sie Ihren Namen an.";
			has_errors = 1;
			name.focus();
		}
	}
	else{
		document.getElementById("l_name").style.color =  "#000";
		name.className = "formObject";
	}
	
		
	/*var lname = document.getElementById("contactForm").f_lname;
	if((lname.value==null) || (lname.value=="")){
		
		document.getElementById("l_lname").style.color = "red";
		lname.className = "formObjectError";
		if(has_errors == 0){
			error_message = "Bitte geben Sie Ihren Namen an.";
			lname.focus();
			has_errors = 1;
		}
	}
	else{
		document.getElementById("l_lname").style.color =  "#000";
		lname.className = "formObject";
	}*/
	
	/*var lzip = document.getElementById("contactForm").f_zip;
	if(lzip.value){
		var isvalidzip = validateZIP(lzip.value);
		if(isvalidzip){
			document.getElementById("l_zip").style.color = "#000";
		}
		else{
			document.getElementById("l_zip").style.color = "red";
			return false;
		}
	}*/		

  var country_id = document.getElementById("contactForm").f_country_id;
	if(country_id.value == 0){
		
		document.getElementById("l_country_id").style.color = "red";
		country_id.className = "formObjectError";
		if(has_errors == 0){
			error_message = "Bitte w&auml;hlen Sie ein Land.";
			country_id.focus();
			has_errors = 1;
		}
	}
	else{
		document.getElementById("l_country_id").style.color =  "#000";
		country_id.className = "formObject";
	}
	
	var emailID=document.getElementById("contactForm").f_email
	if ( (emailID.value==null) || (emailID.value=="") || (echeck(emailID.value)==false) ){		
		document.getElementById("l_email").style.color =  "red";
		emailID.className = "formObjectError";
		if(has_errors == 0){
			error_message = "Bitte tragen Sie eine g&uuml;ltige Email-Adresse ein.";
			emailID.focus();
			has_errors = 1;
		}
	}
	else{
		document.getElementById("l_email").style.color =  "#000";
		emailID.className = "formObject";
	}

	var lcomment = document.getElementById("contactForm").f_comment;
	if ((lcomment.value==null)||(lcomment.value=="")){
		document.getElementById("l_comment").style.color =  "red";
		lcomment.className = "formObjectError";
		if(has_errors == 0){
			error_message = "Bitte geben Sie Ihre Nachricht ein.";
			lcomment.focus();
			has_errors = 1;
		}
	}
	else
		document.getElementById("l_comment").style.color =  "#000";
	
	if(has_errors == 1){
		document.getElementById("error_message").innerHTML = '<span style="color:red;">'+error_message+'</span><br /><br />';
		return false;
	}
	else{
		document.getElementById("contactForm").submit();
		return true;
	}

}