function IntegerValue(f)
{
	var theInput=f.value;
	var theLength=theInput.length;
	var goodChar=true;
	if(theInput !=" " )
	{	
		for(i=0;i<theLength;i++)
		{	
			var theChar=theInput.substring(i,i+1);
			if((theChar < "0" || theChar > "9"))
			{
				goodChar=false; 
			}
		}
	}
	if(goodChar == false)
	{
		alert("Please Enter Numeric\nValue."+"\tThank you");
		f.value="";
		f.focus();
	}	
}