function openWindow(theURL, width, height) {
	windowfull = window.open(theURL,"","scrollbars=no,resizable=yes,toolbar=no,location=no,status=no,width="+ width +",height="+ height);
	halfwidth = width/2
	halfheight = height/2
	windowY=((window.screen.availHeight/2)-halfheight)
	windowX=((window.screen.availWidth/2)-halfwidth)
	windowfull.moveTo(windowX,windowY);
	windowfull.focus();
}

function openWindowScroll(theURL, width, height) {
	windowfull = window.open(theURL,"","scrollbars=yes,resizable=yes,toolbar=no,location=no,status=no,width="+ width +",height="+ height);
	halfwidth = width/2
	halfheight = height/2
	windowY=((window.screen.availHeight/2)-halfheight)
	windowX=((window.screen.availWidth/2)-halfwidth)
	windowfull.moveTo(windowX,windowY);
	windowfull.focus();
}

function validEmail() {
       if ( document.email_form.Email.value == 'Enter your email here' || document.email_form.Email.value == ''  ) {
			return false;
		} else {
			return true;
		}
}

function swap() {
	if ( document.email_form.Email.value == 'Enter your email here' ) {
		document.email_form.Email.value = '';
	}
	else if ( document.email_form.Email.value == '' ) {
		document.email_form.Email.value = 'Enter your email here';
	}
}