js控制表单不能输入空格的小例子

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