function checkpageex(theForm) 
	{ 
if (theForm.inputpage.value<1) {
alert("输入的页码不能为零或负数！"); 
//theForm.inputpage.focus(); 
return (false); 
}else if(theForm.inputpage.value>mymaxpage){
alert("输入的页码大于最大的页码数！"); 
//theForm.inputpage.focus(); 
return (false); 
}return true;
}