function validate_email(field,alerttxt) {
	with (field) {
		apos=value.indexOf("@");
		dotpos=value.lastIndexOf(".");
	if (apos<1||dotpos-apos<2) {
		alert(alerttxt);
		return false;
		} else {
		return true;
		}
	}
}

function validate_form(thisform) {
	with (thisform) {
		if (validate_email(email,"Not a valid e-mail address!")==false) {
			email.focus();
			return false;
		}
	}
}



function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function clearDefault(el) {
	if (el.defaultValue==el.value) el.value = ""
}