function Trim(nStr){return nStr.replace(/(^\s*)|(\s*$)/g, "");}

function isNull(obj)
{
	if (Trim(obj.value)=="")
	{
		alert("Please enter the " + obj.tagName);
		obj.focus();
		return true;
	}
	else
		return false;
}

function notEmail(obj)
{
	var exp=/\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/;
	if (!exp.test(obj.value))
	{
		alert("Please enter valid Email Id");
		obj.focus();
		return true;
	}
	else
		return false;
}


function notChecked(obj)
{
	checked = false;
	if(obj.length)
	{
		for(i=0;i<obj.length;i++)
		{
			if(obj[i].checked)
			{checked = true;break;}
		}
	}
	else if(obj.checked)
		checked = true;

	if(!(checked))
	{alert("Please select the records to remove");return true;}
}

function notSelected(obj)
{
	if (obj.value == "")
	{
		alert("Please select the "+ obj.tagName);
		obj.focus();
		return true;
	}
	else
		return false;
}


function notImageFile(obj)
{
	var exp = /^.+\.(jpg|JPG|gif|GIF|JPEG|jpeg)$/;
	if (!exp.test(obj.value))
	{
		alert("Please choose jpg or gif file");
		obj.focus();
		return true;
	}
	else
		return false;
}


function notPrice(obj)
{
	exp = /^[\d]*[\.]{0,1}[\d]{1,2}$/;
	if (!exp.test(obj.value))
	{
		alert("Please enter valid Price");
		obj.focus();
		return true;
	}
	else
		return false;
}

function fnChkNum()
{
	if ((window.event.keyCode < 48) || (window.event.keyCode > 57))
	{
		window.event.keyCode = 0;
	}
}