让页面所有的文本框不能输入空格(JavaScript)

        window.onload=function()
        {
            var inputs=document.getElementsByTagName("input");
            for (var i=0;i<inputs.length; i++) { 
                if(inputs[i].getAttribute("type")=="text")
                 inputs[i].onkeyup=function(){
                    this.value=this.value.replace(/(^\s+)|\s+$/g,"");
                 };
            } 
        }