function trim(value) {
	var exp = /^(\s*)(\S*)(\s*$)/;
	if (exp.test(value)) 
		value = value.replace(exp, '$2');
	return value;
}
function isEmpty(obj, fldName) {   
	if( trim(obj.value) == "") {
		if ( obj.type == 'text' || obj.type == 'textarea' ) {
			alert("Please enter "+ fldName);
		} else {
			alert("Please select "+ fldName);
		}
		obj.value = trim( obj.value);
		obj.focus()
		return true;
	}
	else 
		return false;
}
function validateQuickOrder( frmObj ) {
	var len = document.getElementsByName('sku[]').length;
	var skuEmpty	= true;
	var qtyEmpty	= true;
	myRegExp 		= new RegExp(/^\d+(\.\d{0,2})?$/);
	for(var i=0; i<len ; i++){
		
		sku_obj	= eval( "document"+"."+"getElementById(\"sku_"+i+"\")" );
		sku	= eval( "sku_obj"+".value" );
		qty_obj	= eval( "document"+"."+"getElementById(\"qty_"+i+"\")" );
		qty	= eval( "qty_obj"+".value" );
		if( trim(sku) != '' ) {
			skuEmpty	= false;
		}
		if( trim(qty) != '' ) {
			qtyEmpty	= false;
			if(!myRegExp.test(qty)){
				alert('Please enter a valid quantity.');
				qty_obj.focus();
				return false;
			}
		}
		if( trim(sku) == '' && trim(qty) != '' ) {
			alert('Please enter an item number.');
			sku_obj.focus();
			return false;
		}
	}
	if( skuEmpty && qtyEmpty ) {
		alert('Please enter an item number and quantity.');
		sku_obj.focus();
		return false;
	}
	else if( !skuEmpty && qtyEmpty ) {
		alert('Please enter a quantity.');
		qty_obj.focus();
		return false;		
	}
	else if( skuEmpty && !qtyEmpty ) {
		alert('Please enter an item number.');
		sku_obj.focus();
		return false;		
	}
	return true;
}