function numeric()
{  
	if (((event.keyCode<48)  ||(event.keyCode>57)) && (event.keyCode != 9)&& (event.keyCode != 13))
	{		
		event.keyCode="";
		return false;
	}	
	return false;
}

function checknumeric(ctl)
{  
	var val=new String(document.getElementById(ctl).value);
	
	if ((event.keyCode == 46) && val.indexOf(".") !=-1)  
	{
		event.keyCode="";
		return false;			   
	}   
	
	if (((event.keyCode<48)  ||(event.keyCode>57)) && (event.keyCode != 9)&& (event.keyCode != 13) && (event.keyCode != 46))
	{		
		event.keyCode="";
		return false;
	}	
	return false;
}

function validatefield(field)
{
    try
    {
        if(parseInt(document.getElementById(field).innerText)> 0) 
        {
            return true;
        }
        else
        {
            return false;
        }
    }
    catch(ex)
    {
        return false;
    }
}
function KeyDownBlock()
{   
    if(window.event.keyCode != 13 && window.event.keyCode != 9)
    {
       window.event.returnValue=false;
    } 
}