function f_trimmer(thisstring)
{
	while(thisstring.charAt(0)==" ")
	{
		thisstring=thisstring.substring(1,thisstring.length);
	}
	return thisstring;
}

function checkme(form){

	if (document.forms[form].scode) 
		if (f_trimmer(document.forms[form].scode.value)==""){	
			 alert("Security code required");
			 document.forms[form].scode.focus();
			 return false;
		}
		else{
			if (hex_md5(document.forms[form].scode.value) != hex_md5(document.forms[form].mcode.value)){
				alert ('Incorrect security code');
				 return false;
			}
		}
		
	if (document.forms[form].firstname) 
		if (f_trimmer(document.forms[form].firstname.value)==""){	
			 alert("Firstname required");
			 document.forms[form].firstname.focus();
			 return false;
		}
		
	if (document.forms[form].lastname) 
		if (f_trimmer(document.forms[form].lastname.value)==""){	
			 alert("Lastname required");
			 document.forms[form].lastname.focus();
			 return false;
		}
		
	if (document.forms[form].mail)
		if (f_trimmer(document.forms[form].mail.value)==""){
			 alert("E-mail required !");
			 document.forms[form].mail.focus();
			 return false;
		} else {
			var s = new String(document.forms[form].mail.value);
			if ((s.indexOf(".")==-1 || s.indexOf("@")==-1)){       
			       alert ("E-mail invalid!");
					document.forms[form].mail.focus();
					return false;
				}
		}
		
	if (document.forms[form].phone) 
		if (f_trimmer(document.forms[form].phone.value)==""){	
			 alert("Telefoonnummer required");
			 document.forms[form].phone.focus();
			 return false;
		}
	
	if (document.forms[form].company) 
		if (f_trimmer(document.forms[form].company.value)==""){	
			 alert("Company required");
			 document.forms[form].company.focus();
			 return false;
		}
	
	
	if (document.forms[form].subject) 
		if (f_trimmer(document.forms[form].subject.value)==""){	
			 alert("Subject required");
			 document.forms[form].subject.focus();
			 return false;
		}
		
	if (document.forms[form].message) 
		if (f_trimmer(document.forms[form].message.value)==""){	
			 alert("Message required");
			 document.forms[form].message.focus();
			 return false;
		}
	
	if (document.forms[form].sex){
		if (document.forms[form].sex.value==0){	
			alert("Select a Sex!");
			document.forms[form].sex.focus();
			return false;
		}
	}
	
	return true;
}