function valDateTH(c){
		if(c.value!='') {
		var reg=c.value;
		var rx = new RegExp('^((0[1-9])|(1\\d)|(2\\d)|(3[0-1]))\\/(|(0[1-9])|(1[0-2]))\\/((24[6-9][0-9])|(25[0-9][0-9]))');
		var mtc = rx.exec(reg);
		if(mtc == null || reg != mtc[0]){
			alert("ΗΡΉ·ΥθδΑθΆΩ‘΅ιΝ§");
			c.value='';
			c.focus();
		}
	}
}