/*

Strip whitespace from the beginning and end of a string

Input : a string

*/
function trim(str)

{

	return str.replace(/^\s+|\s+$/g,'');

}


/*

Add items to shopping cart

*/
function getObject(id) { 
	return document.getElementById(id);
  return (ns4) ? document.layers[id] : (ie4) ? document.all[id] : (ie5||ns5) ? document.getElementById(id) : null; 
}

function addToCart(ID)

{     
	//	alert(ID);
 	//var qtyjs=eval('document.productlist.qty'+pd_id+'.value');
	
	//var quatity=eval('document.productlist.qty'+pd_id+'.value');
	
   	//var text='./include/cart/Cart.php?action=add&p='+pd_id+'&qty='+quatity+'';
	
	//var text='?mwd=Cart&action=add&p='+pd_id+'&qty='+quatity;
   
	
	
	
		var error='';
		var pdcr='N/A';
		var pdsz='N/A'
		var qty=getObject('qty'+ID).value;		
		if(getObject('cboColor_'+ID)){
			pdcr=getObject('cboColor_'+ID).value;
			if(pdcr==''){
				error +='Select product color. \n';
			}
		}
		if(getObject('cboSize_'+ID)){
			pdsz=getObject('cboSize_'+ID).value;
			if(pdsz==''){
				error +='Select product size. \n';
			}
		}
		if(qty=='' || qty==0){
				qty=1;
			
		}
				
		
		if(error!=''){
			 msg='Please select the following field(s): \n'+error;
			alert(msg);
			return false;
		}
		else{
			
			window.location.href='?mwd=Cart&action=add&p='+ID+'&qty='+qty+'&size='+pdsz+'&color='+pdcr;
		}		

}

/*

Add items to shopping cart

*/
function deleteProduct(cartId)

{     
	
	if(confirm('Are you sure to delete this item form shopping cart?')){
		window.location.href='?mwd=Cart&action=delete&cid='+cartId;
	}		

}


/*

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;

		}

	}	

}


function confirmEmtyCart(){
	
	if (confirm('You want to remove all items form shopping cart?'))
		return true;
	}
	
	

function cancelOrder(){
	
	if (confirm('Do you want really to cancel this order,\nand remove all items from shopping cart?'))
		window.location.href='?mwd=Cart&action=cancelOrder';
		
}

function searchProduct(){
	
	keyword=document.getElementById("search").value;
	if(keyword=="" || keyword=="Search..."){
		alert("Please enter keyword");
		return false;
	}
	else if(keyword.length<4){
		alert("Keyword too short");
		return false;		
		 
	}else{
		return window.location.href='?mwd=Search&q='+keyword;		
		 
	}
}
/*

	Open pouUp window and center it

*/

function openWindow(url,name,width,height){
	//var width  = 720;
	 //var height = 600;
	 var left   = (screen.width  - width)/2;
	 var top    = (screen.height - height)/2;
	 var params = 'width='+width+', height='+height;
	 params += ', top='+top+', left='+left;
	 params += ', directories=no';
	 params += ', location=no';
	 params += ', menubar=no';
	 params += ', resizable=no';
	 params += ', scrollbars=yes';
	 params += ', status=no';
	 params += ', toolbar=no';
	 newwin=window.open(url,name, params);
	 if (window.focus) {newwin.focus()}
 //return false; 	
}