function isNumberKey(evt) //rakam kontrol
      {
         var charCode = (evt.which) ? evt.which : event.keyCode
         if (charCode > 31 && (charCode < 48 || charCode > 57))
            return false;

         return true;

}


function showForm(divID){  //dönüşümlü form
	divKK = document.getElementById('div_kk');
	divBH = document.getElementById('div_bh');
	divPH = document.getElementById('div_ph');
	if (divID == 'kk'){
		divBH.style.display = 'none';
		divKK.style.display = 'block';
		divPH.style.display = 'none';
		}
	else if (divID == 'bh'){
		divKK.style.display = 'none';
		divBH.style.display = 'block';
		divPH.style.display = 'none';
		}
	else {
		divKK.style.display = 'none';
		divBH.style.display = 'none';
		divPH.style.display = 'block';
		}
}

function popup(popdosya,h,w) {
window.open(popdosya,"","height="+h+",width="+w+",left=0,top=0, scrollbars=yes");
}