function isValidDate(strDate){
	if (strDate == null || strDate == "//") return true; 
	var datePat = /^(\d{1,2})(\/)(\d{1,2})(\/)(\d{4})$/;
	var matchArray = strDate.match(datePat);
	if (matchArray == null) return false;
	var month = matchArray[1] - 1;		
	var day = matchArray[3]; 
	var year = matchArray[5];
	var dteDate = new Date(year, month, day);
	return ((day==dteDate.getDate()) && (month==dteDate.getMonth()) && (year==dteDate.getFullYear()));
}

function isDate(dt) {          
	var mm = dt.substr(0,2);
	var dd = dt.substr(3,2);
	var yy = dt.substr(6,4);
	
	if(mm.isNaN) return false;
	if(dd.isNaN) return false;
	if(yy.isNaN) return false;
	 
	if (mm.substr(0,1)=="0" ) mm= mm.substr(1,1);
	if (dd.substr(0,1)=="0" ) dd= dd.substr(1,1);
	mm= parseInt(mm)-1; 
	dd= parseInt(dd);
	yy= parseInt(yy);
	
	var dat = new Date(yy,mm,dd);
	var _mm= dat.getMonth();
	var _dd= dat.getDate();
	var _yy= dat.getFullYear();
	
	if(( mm!=_mm)||(dd!=_dd)||(yy!=_yy))return false;
	
	return true;	    
}