/*
	javascript development
	============================
	website 	: 	semeli group
	date 		: 	26-4-2009		
	author 		: 	mayra metaxa / developer
	company		: 	mozaik creative business solutions
	url			:	http://www.mozaik.com

*/

/*
function click_clear(id, text)
{
	if (document.getElementById(id).value == text)
		document.getElementById(id).value = "";
}

function prefill(id, text)
{
	if (document.getElementById(id).value == "")
		document.getElementById(id).value = text;
}*/


/* ========= FORM functions ========= */

function show_error(id)
{
	document.getElementById(id).style.background="#E6E3D9";
}

function clear_errors(which)
{
	for (i=0;i<document.forms[which].elements.length;i++)
	{
		if ( (document.forms[which].elements[i].type != "button") && (document.forms[which].elements[i].type != "reset") && (document.forms[which].elements[i].id!="fieldset") )
			document.forms[which].elements[i].style.background="#ffffff";
	}
}


function checkEmail(elem)
{
   var field = document.getElementById(elem);
   var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
   if (field.value.length ==0)
		return false;

   if(field.value.match(emailExp))
		   return true;
   else 
		   return false;
   
}


function check_form(formid, whichform, mandatory_fields, numericfields, emailid)
{
	clear_errors(whichform);
	
	//check mandatory fields
	var man = mandatory_fields.split(",");
	for (i=0;i<man.length;i++)
	{
		if (document.getElementById(man[i]).value == "")
		{
			show_error(man[i]);
			alert ("You must fill all the mandatory fields (*)");
			return false;
		}
	}		

	if (emailid!="")
	{
		if (!checkEmail(emailid))
		{
			show_error(emailid);
			alert ("Your email address is not valid.");
			return false;
		}
	}
	
	//check numeric fields
	if (numericfields != "")
	{
		var numeric = numericfields.split(",");
		for (i=0;i<numeric.length;i++)
		{
			document.getElementById(numeric[i]).value = document.getElementById(numeric[i]).value.replace(/,/,".");
			
			if (isNaN (document.getElementById(numeric[i]).value))
			{
				show_error(numeric[i]);
				alert (numeric[i]+": should be a number. Plase check and try again!");
				return false;
			}
		}
	}
	
	document.getElementById(formid).submit();
}


function change_hotel()
{
	var sel = document.getElementById('hotel').selectedIndex;
	
	if (sel==0)
	{
		document.getElementById('view_date').style.display = "none";
		
		document.getElementById('nights').style.display = "block";
		document.getElementById('adults').style.display = "block";
		document.getElementById('rooms_child').style.display = "block";
	}
	else
	{
		//view
		document.getElementById('nights').style.display = "none";
		document.getElementById('adults').style.display = "none";
		document.getElementById('rooms_child').style.display = "none";
		
		document.getElementById('view_date').style.display = "block";
	}
}



function check_bookingform(formid, whichform, mandatory_fields, numericfields, emailid)
{
	clear_errors(whichform);
	
	var links_ar = new Array("https://semeli.reserve-online.net", "https://www.hotelworks.gr/Default.aspx");
	var sel = document.getElementById('hotel').selectedIndex;
	document.getElementById(formid).action = links_ar[sel];
	
	document.getElementById('StartDate').value = document.getElementById('checkin').value;

	//check mandatory fields
	var man = mandatory_fields.split(",");
	for (i=0;i<man.length;i++)
	{
		if (document.getElementById(man[i]).value == "")
		{
			show_error(man[i]);
			alert ("You must fill all the mandatory fields (*)");
			return false;
		}
	}		

	if (emailid!="")
	{
		if (!checkEmail(emailid))
		{
			show_error(emailid);
			alert ("Your email address is not valid.");
			return false;
		}
	}
	
	//check numeric fields
	if (numericfields != "")
	{
		var numeric = numericfields.split(",");
		for (i=0;i<numeric.length;i++)
		{
			document.getElementById(numeric[i]).value = document.getElementById(numeric[i]).value.replace(/,/,".");
			
			if (isNaN (document.getElementById(numeric[i]).value))
			{
				show_error(numeric[i]);
				alert (numeric[i]+": should be a number. Plase check and try again!");
				return false;
			}
		}
	}
	
	_gaq.push(['_trackEvent', 'book-now-form', 'click']);
	
	document.getElementById(formid).submit();
}