// <!-- security code for the form -->

    var a = Math.ceil(Math.random() * 10);
    var b = Math.ceil(Math.random() * 10);       
    var c = a + b
    function DrawBotBoot()
    {
        document.write("code: "+ a + " + " + b +"= ");
        document.write("<input id='BotBootInput' type='text' maxlength='2' size='1' value='?'/>");
    }    
    function ValidBotBoot(){
        var d = document.getElementById('BotBootInput').value;
        if (d == c) {
		document.getElementById('BotBootInput').value = '0';
		return true;
		}
		else{
		alert("please type the correct security code in the box on the right");
        return false;
		}
        
    }

// check email address
function checkEmail() {
	var email = document.getElementById('email');
	var filter = /^([a-zA-Z0-9_.-])+@(([a-zA-Z0-9-])+.)+([a-zA-Z0-9]{2,4})+$/;
	if (!filter.test(email.value)) {
	alert('please provide a valid email address');
	email.focus
	return false;
	}
	return true;
}

// check email address
function checkMessage() {
	var email = document.getElementById('msg');
	if ((email.value.length==0) || (email.value==null)) {
		alert('please write your comments');
		return false;
	}
	else { 
		return true; 
	}
}	

//to control the appearance of the forms in all the browsers
function putFormColumns(){
	//alert("o");
	if (/Firefox[\/\s](\d+\.\d+)/.test(navigator.userAgent)){ //test for Firefox/x.x or Firefox x.x (ignoring remaining digits);
	 var ffversion=new Number(RegExp.$1) // capture x.x portion and store as a number
	 if (ffversion>=3){
	  document.getElementById('field-email').innerHTML = "<input type=\"text\" id=\"email\" class=\"intext\" name=\"e_mail\" size=\"26\" value=\"\" style=\"color: #28aae1; border:none;\"/>";
	  document.getElementById('field-comments').innerHTML = "<textarea name=\"message\" id=\"msg\" rows=\"4\" cols=\"47\" style=\"color: #28aae1; border:none;\"/></textarea>";
	 }else if (ffversion>=2){
	  document.getElementById('field-email').innerHTML = "<input type=\"text\" id=\"email\" class=\"intext\" name=\"e_mail\" size=\"26\" value=\"\" style=\"color: #28aae1; border:none;\"/>";
	  document.getElementById('field-comments').innerHTML = "<textarea name=\"message\" id=\"msg\" rows=\"4\" cols=\"47\" style=\"color: #28aae1; border:none;\"/></textarea>";
	 }else if (ffversion>=1){
	  document.getElementById('field-email').innerHTML = "<input type=\"text\" id=\"email\" class=\"intext\" name=\"e_mail\" size=\"26\" value=\"\" style=\"color: #28aae1; border:none;\"/>";
	  document.getElementById('field-comments').innerHTML = "<textarea name=\"message\" id=\"msg\" rows=\"4\" cols=\"47\" style=\"color: #28aae1; border:none;\"/></textarea>";
	 }
	}
	else{
		if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)){ //test for MSIE x.x;
		 var ieversion=new Number(RegExp.$1) // capture x.x portion and store as a number
		 if (ieversion>=8){
		  document.getElementById('field-email').innerHTML = "<input type=\"text\" id=\"email\" class=\"intext\" name=\"e_mail\" size=\"26\" value=\"\" style=\"color: #28aae1; border:none;\"/>";
		  document.getElementById('field-comments').innerHTML = "<textarea name=\"message\" id=\"msg\" rows=\"5\" cols=\"47\" style=\"color: #28aae1; border:none;\"/></textarea>";
		 }else if (ieversion>=7){
		  document.getElementById('field-email').innerHTML = "<input type=\"text\" id=\"email\" class=\"intext\" name=\"e_mail\" size=\"26\" value=\"\" style=\"color: #28aae1; border:none;\"/>";
		  document.getElementById('field-comments').innerHTML = "<textarea name=\"message\" id=\"msg\" rows=\"5\" cols=\"47\" style=\"color: #28aae1; border:none;\"/></textarea>";
		 }else if (ieversion>=6){
		  document.getElementById('field-email').innerHTML = "<input type=\"text\" id=\"email\" class=\"intext\" name=\"e_mail\" size=\"26\" value=\"\" style=\"color: #28aae1; border:none;\"/>";
		  document.getElementById('field-comments').innerHTML = "<textarea name=\"message\" id=\"msg\" rows=\"5\" cols=\"47\" style=\"color: #28aae1; border:none;\"/></textarea>";		 
		 }else if (ieversion>=5){
		  document.getElementById('field-email').innerHTML = "<input type=\"text\" id=\"email\" class=\"intext\" name=\"e_mail\" size=\"26\" value=\"\" style=\"color: #28aae1; border:none;\"/>";
		  document.getElementById('field-comments').innerHTML = "<textarea name=\"message\" id=\"msg\" rows=\"5\" cols=\"47\" style=\"color: #28aae1; border:none;\"/></textarea>";
		 }
		}
		else{
			if (/Opera[\/\s](\d+\.\d+)/.test(navigator.userAgent)){ //test for Opera/x.x or Opera x.x (ignoring remaining decimal places);
			 var oprversion=new Number(RegExp.$1) // capture x.x portion and store as a number
			 if (oprversion>=10){
			  document.getElementById('field-email').innerHTML = "<input type=\"text\" id=\"email\" class=\"intext\" name=\"e_mail\" size=\"24\" value=\"\" style=\"color: #28aae1; border:none;\"/>";
			  document.getElementById('field-comments').innerHTML = "<textarea name=\"message\" id=\"msg\" rows=\"5\" cols=\"54\" style=\"color: #28aae1; border:none;\"/></textarea>";
			 }else if (oprversion>=9){
			  document.getElementById('field-email').innerHTML = "<input type=\"text\" id=\"email\" class=\"intext\" name=\"e_mail\" size=\"24\" value=\"\" style=\"color: #28aae1; border:none;\"/>";
			  document.getElementById('field-comments').innerHTML = "<textarea name=\"message\" id=\"msg\" rows=\"5\" cols=\"54\" style=\"color: #28aae1; border:none;\"/></textarea>";
			 }else if (oprversion>=8){
			  document.getElementById('field-email').innerHTML = "<input type=\"text\" id=\"email\" class=\"intext\" name=\"e_mail\" size=\"24\" value=\"\" style=\"color: #28aae1; border:none;\"/>";
			  document.getElementById('field-comments').innerHTML = "<textarea name=\"message\" id=\"msg\" rows=\"5\" cols=\"54\" style=\"color: #28aae1; border:none;\"/></textarea>";
			 }else if (oprversion>=7){
			  document.getElementById('field-email').innerHTML = "<input type=\"text\" id=\"email\" class=\"intext\" name=\"e_mail\" size=\"24\" value=\"\" style=\"color: #28aae1; border:none;\"/>";
			  document.getElementById('field-comments').innerHTML = "<textarea name=\"message\" id=\"msg\" rows=\"5\" cols=\"54\" style=\"color: #28aae1; border:none;\"/></textarea>";
			 }else{
			  document.getElementById('field-email').innerHTML = "<input type=\"text\" id=\"email\" class=\"intext\" name=\"e_mail\" size=\"24\" value=\"\" style=\"color: #28aae1; border:none;\"/>";
			  }document.getElementById('field-comments').innerHTML = "<textarea name=\"message\" id=\"msg\" rows=\"5\" cols=\"54\" style=\"color: #28aae1; border:none;\"/></textarea>";
			}
			else{ //this is safari!
			 document.getElementById('field-email').innerHTML = "<input type=\"text\" id=\"email\" class=\"intext\" name=\"e_mail\" size=\"25\" value=\"\" style=\"color: #28aae1; border:none;\"/>";
			 document.getElementById('field-comments').innerHTML = "<textarea name=\"message\" id=\"msg\" rows=\"5\" cols=\"46\" style=\"color: #28aae1; border:none;\"/></textarea>";	
			}
		}
	}
	 
}