function openWin(theURL,winName,features) {
  	window.open(theURL,winName,features);
}

function OpenPreviewWindow(targetPage, formName){
	
	now = new Date  
   	openWin('','preview','toolbar=0,location=0,status=0,menubar=0,scrollbars=1,resizable=0,width=780,height=400')
   		
   	formName.action = targetPage + "?ID=" + now.getTime();	
	formName.target = "preview";
	formName.submit();
}