function checkall(objForm){
	len = objForm.elements.length;
	var i=0;
	for( i=0 ; i<len ; i++) {
		if (objForm.elements[i].type=='checkbox') {
			objForm.elements[i].checked=objForm.check_all.checked;
		}
	}
}

function confirm_submit(objForm) {
	return true;
}
function popupwin(file,Iwidth,Iheight) {
      var newWin1=window.open(file,'nWin2','x=0,y=0,toolbar=no,location=no,directories=no,status=yes,scrollbars=yes, copyhistory=no,width='+Iwidth+',height='+Iheight+',screenX=0,screenY=0,left=200,top=200');
}