function CommentSizeDown(obj) {
	obj.style.height = parseInt(obj.style.height) + 20;
}
		
function CommentSizeUP(obj) {
	if (parseInt(obj.style.height) > 60) {
		obj.style.height = obj.style.height = parseInt(obj.style.height) - 20;
	}
}

function CheckEmail(strValue) 
{ 
	var flag = false;
	emailEx1 = /^([A-Za-z0-9_]{1,15})(@{1})([A-Za-z0-9_]{1,15})(\.{1})([A-Za-z0-9_]{2,10})(\.{1}[A-Za-z]{2,10})?(\.{1}[A-Za-z]{2,10})?$/; 
	if(emailEx1.test(strValue)) {
		flag = false; 
	} else {
		flag = true;
	}
	return flag;
}