function OnSubmitForm()
	{
	var errMsg = '';
	var cname, csubject, crecipient, cmessage, cemail;
		with(window.document.emails)
		{
			cname      	= name_of_sender;
			csubject   	= subject_line;
			crecipient 	= contact_name;
			cemail     	= email_of_sender;
			cmessage	= message;
		}
		if(cname.value == '')
		{
			errMsg+='Please enter your name.\n';
		}
	   
		if(csubject.value == '')
		{	
			errMsg+='Please enter a subject for the email.\n';
		}
	   
		if(crecipient.value == '')
		{
			errMsg+='Please select the recipient of the email.\n';
		}
	   
		if(cmessage.value == '')
		{	
			errMsg+='Please enter the text you wish to send in the email.\n';
		}
	   
		if(cemail.value == '')
		{
			errMsg+='Please enter your email address in order to receive a reply.\n';
		}

		if(cemail.value != '')
		{
	   		if(!isEmail(cemail.value))
	   		{
	   		   errMsg+='Email address is not valid. Please enter a valid email address.\n';
	   		}
	   	}
	   	if(errMsg!='')
	   	{
			alert(errMsg);
			return false;
		}
		else
		{
			if(document.pressed == 'Send')
			{
				document.emails.action ="d_i_s_p_a_t_c_h.php";
			}
			return true;
		}
	}
	
	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|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);
	}