<!-- Start Google Analytic -->
var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));

try {
var pageTracker = _gat._getTracker("UA-3747197-1");
pageTracker._trackPageview();
} catch(err) {}
<!-- End Google Analytic -->


<!-- Start Form Validation -->
function setFocus(aField){
	var obj_res = document.demoform;
	obj_res[aField].focus();
}
function isEmpty(aTextField){
	var obj_res = document.demoform;
	if ((obj_res[aTextField].value.length==0) || (obj_res[aTextField].value==null)) {
		return true;
	}else{ 
		return false;
	}
}
function isAnEmailAddress(aTextField){
	var obj_res = document.demoform;
	// 1+@3+ [or x@x.x] is as close as we will test
	if (obj_res[aTextField].value.length<5){
		return true;
	}else if (obj_res[aTextField].value.indexOf("@") < 1){
		return true;
	}else if (obj_res[aTextField].value.length - obj_res[aTextField].value.indexOf("@") < 4){
		return true;
	}else{ 
		return false;
	}
}
function validate_data(){
	var obj_res = document.demoform;

	// Check radio button
	myOption = -1;
	for (i=obj_res.chk_acc.length-1; i > -1; i--) {
		if (obj_res.chk_acc[i].checked) {
			myOption = i; i = -1;
		}
	}


	if (obj_res.dc1.value==''){ alert('Please select Arrival date'); setFocus("dc1")} <!-- 1 -->
	else{
		if(obj_res.dc2.value == ''){ alert('Please select Departure date'); setFocus("dc2")} <!-- 2 -->
	    	else{
	if(myOption == -1){ alert('Please select Type of Accommodation'); } <!-- 4 -->
	else{
		if(obj_res.txt_gname1.value == '' || obj_res.txt_glname1.value == ''){ alert('Please Fill in Guest Name and Surname'); setFocus("txt_gname1")} <!-- 5 -->
		else{
			if(isEmpty("txta_address")){ alert('Please Fill in Address'); setFocus("txta_address")} <!-- 6 -->
			else{
				if(obj_res.txt_zip.value == ''){ alert('Please Fill in Zip code'); setFocus("txt_zip")} <!-- 7 -->
				else{ 
					if(isEmpty("txt_email") || isAnEmailAddress("txt_email")){ alert('Please Fill in complete E-mail'); setFocus("txt_email")} <!-- 8 -->
					else{ 
						if(isEmpty("txt_number")){ alert('Please Fill in Telphone/Fax number'); setFocus("txt_number")} <!-- 9 -->
						else{
							if(isEmpty("txt_cname")){ alert('Please Fill in Credit card holder name'); setFocus("txt_cname")} <!-- 10 -->
							else{
								if(isEmpty("txt_cnumber")){ alert('Please Fill in Credit card number'); setFocus("txt_cnumber")} <!-- 11 -->
								else{
									obj_res.submit();
								}
	}}}}}}}}}
}
<!-- End Form Validation -->