function checkForm()
{
	var ccontact_name, ccontact_lname, cmobile_no, ccontact_email, ccontact_address, ccontact_city, ccountry, cwant_to, cprop_type, cprop_location, crequirement_query, cvercode;
	with(window.document.form1)
	{
		ccontact_name    = contact_name;
		ccontact_lname   = contact_lname;
		cmobile_no = mobile_no;
		ccontact_email    = contact_email;
		ccontact_address = contact_address;
		ccontact_city   = contact_city;
		ccountry = country;
		cwant_to = want_to;
		cprop_type= prop_type;
		cprop_location = prop_location;
		crequirement_query= requirement_query;
		cvercode = vercode;
	}
	
	if(trim(ccontact_name.value) == '')
	{
		alert('Please Enter Your First Name');
		ccontact_name.focus();
		return false;
	}
	else if(trim(ccontact_lname.value) == '')
	{
		alert('Please Enter Your Last Name');
		ccontact_lname.focus();
		return false;
	}
	else if(trim(cmobile_no.value) == '')
	{
		alert('Please Enter Your Mobile Number');
		cmobile_no.focus();
		return false;
	}
	
	else if(trim(ccontact_email.value) == '')
	{
		alert('Please Enter Your Email');
		ccontact_email.focus();
		return false;
	}
	else if(!isEmail(trim(ccontact_email.value)))
	{
		alert('Email address is not valid');
		ccontact_email.focus();
		return false;
	}
	else if(trim(ccontact_address.value) == '')
	{
		alert('Please Enter Your Address');
		ccontact_address.focus();
		return false;
	}
	else if(trim(ccontact_city.value) == '')
	{
		alert('Please Enter Your City');
		ccontact_city.focus();
		return false;
	}
	else if(trim(ccountry.value) == '')
	{
		alert('Please Enter Your Country');
		ccountry.focus();
		return false;
	}
	else if(trim(cwant_to.value) == 'Select' || trim(cwant_to.value) == '')
	{
		alert('Please Enter Your Property Option');
		cwant_to.focus();
		return false;
	}
	else if(trim(cprop_type.value) == 'Select' || trim(cprop_type.value) == '')
	{
		alert('Please Enter Your Property Category');
		cprop_type.focus();
		return false;
	}
	else if(trim(cprop_location.value) == '')
	{
		alert('Please Enter Your Location of Interest');
		cprop_location.focus();
		return false;
	}
	else if(trim(crequirement_query.value) == '')
	{
		alert('Please Enter Your Requirements');
		crequirement_query.focus();
		return false;
	}
	else if(trim(cvercode.value) == '')
	{
		alert('Please Enter Verification Code');
		cvercode.focus();
		return false;
	}
	
	else
	{
		ccontact_name.value    = trim(ccontact_name.value);
		ccontact_lname.value   = trim(ccontact_lname.value);
		cmobile_no.value = trim(cmobile_no.value);
		ccontact_email.value   = trim(ccontact_email.value);
		ccontact_address.value   = trim(ccontact_address.value);
		ccontact_city.value   = trim(ccontact_city.value);
		ccountry.value = trim(ccountry.value);
		cwant_to.value   = trim(cwant_to.value);
		cprop_type.value   = trim(cprop_type.value);
		cprop_location.value   = trim(cprop_location.value);
		crequirement_query.value   = trim(crequirement_query.value);
		cvercode.value   = trim(cvercode.value);
		return true;
	}
}

/*
Strip whitespace from the beginning and end of a string
Input : a string
*/
function trim(str)
{
	return str.replace(/^\s+|\s+$/g,'');
}

/*
Check if a string is in valid Email format. 
Returns true if valid, false otherwise.
*/
function isEmail(str)
{
	var regex = /^[-_.a-z0-9]+@(([-_a-z0-9]+\.)+(ad|ae|aero|af|ag|ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|biz|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|in|info|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum|mv|mw|mx|my|mz|na|First_Name|nc|ne|net|nf|ng|ni|nl|no|np|nr|nt|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|pro|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|zw)|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$/i;
	return regex.test(str);
}