$(document).ready(function() {
	//create dialog box
	$("#sendto").dialog({
		autoOpen: false,
		bgiframe: true,
		resizable: false,
		width: 350,
		zIndex: 9999,
		closeOnEscape: true,
		modal: true,
		overlay: {
			backgroundColor: '#000'
					},
			buttons: {
					'Cancel': function() {
						$(this).dialog('close');
						clearForm();
						},
						'Send': function() {
							if (sendPage()) {
								$(this).dialog('close');
								clearForm();
							}
						}
					}
		});
		
		//create dialog open link
		$("#sendtolinks").click(function() {
			$("#sendto").dialog('open');
		});
	
	//assign mouseover css to mouse pointer	
	$("#sendtolinks").mouseover(function(){
		$(this).css('cursor','hand').addClass('hover');
    }).mouseout(function(){
     	$(this).css('cursor','pointer').removeClass('hover');
    });

});

function clearForm() {
		//clears the forms values
		$("#y_name,#y_email,#f_name,#f_email,#comm").val("").removeClass('ui-state-error');
		$("#validateTips").text("").removeClass('ui-state-error');
}

function updateTips(t) {
			//sets error element text
			tips = $("#validateTips");
			tips.show();
			tips.text(t).addClass('ui-state-error');
};

function checkRegexp(o,regexp,n) {
			//checks a string meets a given pattern
			if ( !( regexp.test( o.val() ) ) ) {
				o.addClass('ui-state-error');
				updateTips(n);
				o.focus();
				o.select();
				return false;
			} else {
				return true;
			}
};

function checkLength(o,n,min,max) {
			//checks the length of a string
			var myval = o.val();
			if (myval) {
			if ( o.val().length > max || o.val().length < min ) {
				o.addClass('ui-state-error');
				updateTips("Your " + n + " must be between "+min+" and "+max+" characters long.");
				o.focus();
				o.select();
				return false;
			} else {
				return true;
			}
			}	
			else
			{
				o.addClass('ui-state-error');
				updateTips(n + " cannot be empty. Please enter a value");
				o.focus();
				o.select();
				return false;
			}
};

function sendPage() {
	var bValid = true;
	tips = $("#validateTips");
	tips.removeClass('ui-state-error');
	tips.hide();
	//get all elements for validation
	var myid = $("#id").val();
	var y_name = $("#y_name");
	var y_email = $("#y_email");
	var f_name = $("#f_name");
	var f_email = $("#f_email");
	var comm = $("#comm");
	//add them to an array
	allFields = $([]).add(y_name).add(f_name).add(f_email);
	allFields.removeClass('ui-state-error');
	//validate them
	bValid = bValid && checkLength(y_name,"name",2,50);
	bValid = bValid && checkLength(y_email,"your email",5,100);
	bValid = bValid && checkRegexp(y_email,/^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?$/i,"Use correct email format eg. myname@email.co.uk");
	bValid = bValid && checkLength(f_name,"friend's name",2,50);
	bValid = bValid && checkLength(f_email,"friend's email",5,100);
	bValid = bValid && checkRegexp(f_email,/^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?$/i,"Use correct email format eg. myname@email.co.uk");
	
	if (!bValid) {
		return false;
	}
	else
	{
	//submit ajax request with submitted values
	var myurl = "/as/sendpage?openagent&1=" + escape(y_name.val()) + "&2=" + escape(y_email.val()) +  "&3=" + escape(f_name.val()) + "&4=" + escape(f_email.val()) + "&5=" + escape(comm.val()) + "&6=" + escape(location.href) + "&7=" + myid;
	$.post(myurl);
	return true;
}
	
}