function trim(s){	
	while(''+s.charAt(0)==' '){
		s=s.substring(1,s.length)
	}
	return s;
}
function postform(){
	d=document.gallery;
	var allfields=true;	
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9])+$/;
	if (!filter.test(d.imEmailField.value)) {
			allfields=false;
	}		 
	if(trim(d.contactName.value).length<1){
			allfields=false;
	}
	if(allfields){
		d.imReferrerField.value=document.referrer;
		d.submit();
	}
	else {
		alert('Please complete all required fields.');
	}
	
}