function keyCheck(eventObj, obj)
		{
			var keyCode
			if (document.all){ 
				keyCode=eventObj.keyCode
			}
			else{
				keyCode=eventObj.which
			}
			var str=obj.value
			if(keyCode==46){ 
				if (str.indexOf(".")>0){
					return false
				}
			}
			if((keyCode<48 || keyCode >58)&&(keyCode != 08)){
				return false
			}
			return true
		}
		
		function focus_(a,b)
		{
			b.disabled=true;			
			b.style.background = "#E6E6E6";
		}
		
		function blur_(a,b)
		{
			if (a.value == ''){b.disabled=false;b.style.background = "#ffffff";}			
		}