function chkDateFromTo(dateFrom,oper,dateTo){

	/////// 31/7/2006 /////
	//// convert from format d/M/yyyy to format MM/dd/yyyy for check date
	var condf = dateFrom.substring(3,6)+dateFrom.substring(0,3)+dateFrom.substring(6,10);
	var condt = dateTo.substring(3,6)+dateTo.substring(0,3)+dateTo.substring(6,10);

	var df = new Date(condf);
	var dt = new Date(condt);

	switch(oper){
		case '=' :
			if(df==dt)
				return true;
			break;
		case '<' : if(df<dt)
				return true;
			break;
		case '<=' : if(df<=dt)
				return true;
			break;
		case '>' : if(df>dt)
				return true;
			break;
		case '>=' : if(df>=dt)
				return true;
			break;
	}
	return false;
}

function chkEmail(strEmail){
	var regMail = /^([a-zA-Z0-9_.-])+@(([a-zA-Z0-9-])+.)+([a-zA-Z0-9]{2,4})+$/;
	if(regMail.test(strEmail)==false){
		return false;
	}
}

function clrLabel(id){
	document.getElementById(id).innerHTML='';
}
function clrText(id){
	eval('document.all.' + id).value='';
}
function setLabelVal(id,value){
	document.getElementById(id).innerHTML=value;
}
function setTextVal(id,value){
	eval('document.all.' + id).value=value;
}
function getLabelVal(id){
	return document.getElementById(id).innerHTML;
}
function getTextVal(id){
	return eval('document.all.' + id).value;
}
function chkNotNull(){
	var l = chkNotNull.arguments.length;
	var i;
	for(i=0;i<l;i++){
		if(chkNotNull.arguments[i].indexOf('lbl') != -1){
			if(document.getElementById(chkNotNull.arguments[i]).innerHTML==''){
				alert('¡ÃسÒãÊè¢éÍÁÙÅãËé¤Ãº');
				return false;
			}
		}else{
			if(document.getElementById(chkNotNull.arguments[i]).value==''){
				alert('¡ÃسÒãÊè¢éÍÁÙÅãËé¤Ãº');
				return false;
			}
		}
	}
	return true;
}