function onlyNumberInt(val) 
{ 
  if(event.keyCode<48 || event.keyCode>57) {
	//考虑小键盘上的数字键 
    event.returnValue=false; 
    alert("必须输入数字");
    }
} 
function checkNumberInt(val) 
{ 
	var pattern = /^([0-9])*$/;
  	if(!(pattern.test(val.value))){
  		alert('存在非数字');
  		val.value='0';
  	}
    var numArray = val.value.split(".");
    if(numArray.length>2){
    	val.value=val.value.substring(0,val.value.length-1);
  	}
} 

function onlyNumberDouble(val) 
{ 
  if((event.keyCode<48 || event.keyCode>57) && event.keyCode!=46) {
	//考虑小键盘上的数字键 
    event.returnValue=false; 
    alert("必须输入数字");
    }
} 
function checkNumberDouble(val) 
{ 	
	var pattern = /^([0-9]|[.])*$/;
  	if(!(pattern.test(val.value))){
  		alert('存在非数字');
  		val.value='0';
  	}
    var numArray = val.value.split(".");
    if(numArray.length>2){
    	val.value=val.value.substring(0,val.value.length-1);
  	}
}

//判断是否安装客户通
function isInstallSeClient(path){
	var obj5,obj6;
	try{
		obj5 = new ActiveXObject("ljhy.seclient");
	}catch(e){
		obj5 = null;
	}
	//2.5以后的扩展
	return true ;
	if (obj5 != null) {
		return true;
	}else{
		window.open(path+'/aboutus/down.html');
		return false;
	}
}