/*
Strip whitespace from the beginning and end of a string
Input : a string
*/
function trim(str)
{
	return str.replace(/^\s+|\s+$/g,'');
}

/*
Make sure that textBox only contain number
*/
function checkNumber(textBox)
{
	while (textBox.value.length > 0 && isNaN(textBox.value)) {
		textBox.value = textBox.value.substring(0, textBox.value.length - 1)
	}
	
	textBox.value = trim(textBox.value);
/*	if (textBox.value.length == 0) {
		textBox.value = 0;		
	} else {
		textBox.value = parseInt(textBox.value);
	}*/
}

/*
	Check if a form element is empty.
	If it is display an alert box and focus
	on the element
*/
function isEmpty(formElement, message) {
	formElement.value = trim(formElement.value);
	
	_isEmpty = false;
	if (formElement.value == '') {
		_isEmpty = true;
		alert(message);
		formElement.focus();
	}
	
	return _isEmpty;
}

/*
	Set one value in combo box as the selected value
*/
function setSelect(listElement, listValue)
{
	for (i=0; i < listElement.options.length; i++) {
		if (listElement.options[i].value == listValue)	{
			listElement.selectedIndex = i;
		}
	}	
}

// PENCERE AÇ
function open_window(link,w,h)
{
		var win = "width="+w+",height="+h+",menubar=no,location=no,resizable=yes,scrollbars=yes";
		newWin = window.open(link,'newWin',win);
}


// SUBMİT KİLİDİ
function submitonce(theform){
	if (document.all||document.getElementById){
		for (i=0;i<theform.length;i++){
			var tempobj=theform.elements[i]
				if(tempobj.type.toLowerCase()=="submit"||tempobj.type.toLowerCase()=="reset")
				tempobj.disabled=true
				}
		}
	}