function doPop(URL,WName) {

 WinWidth = '400';
 WinHeight = '400';
 var midx = (screen.width/2) - (WinWidth/2);
 var midy = (screen.height/2) - (WinHeight/2);
 var props = "resizeable=no,scrollbars=yes,"+"height="+WinHeight+",width="+WinWidth+",screenX="+midx+",screenY="+midy+",top="+midy+",left="+midx;
  window.open(URL,WName,props);
}

function DisSub(){
	if(document.postform.email.value.length < 7 || document.postform.body.value.length == 0 || document.postform.name.value == 0 || document.postform.subject.value.length == 0){
                alert("A valid email address, name, subject and message is required!");
		return false;
	}else{
	     	document.postform.submitbutton.disabled = true;
               	return true;
	}
}