function mysearchbox(t,f){
	//mfkiqpl 2008/4/4
	this.tabs=document.getElementById(t);
	this.form=document.getElementById(f);
	this.sbox=this.form.getElementsByTagName('INPUT')[0];
	this.selecti=0;
	this.dftt='请输入您遇到的问题'
	this.dset=['BaiDu.Com','Google.Cn','Yahoo.Cn'];
	this.dseu=['www.baidu.com/s','www.google.cn/search','www.yahoo.cn/s'];
	this.dsen=['wd','q','p']
	
	this.init=function(){
		var ti=this.tabs.getElementsByTagName('LI');
		for(var i=0;i<ti.length;i++){
			ti[i].innerHTML=this.dset[i];
			ti[0].className='thiso';
			if (window.addEventListener) {
				ti[i].addEventListener('mouseover',function(o){ns.tab(o)}, false);
			} else if (window.attachEvent) {
				ti[i].attachEvent('onmouseover',function(o){ns.tab(o)});
			}
		}
		
		if (window.addEventListener) {
				this.form.onsubmit=function(){return ns.go()};
			} else if (window.attachEvent) {
				this.form.attachEvent('onsubmit',function(){return ns.go()});
			}
		
		if (window.addEventListener) {
				this.sbox.addEventListener('click',function(o){ns.cl(o)}, false);
				this.sbox.addEventListener('blur',function(o){ns.nf(o)}, false);
			} else if (window.attachEvent) {
				this.sbox.attachEvent('onclick',function(o){ns.cl(o)});
				this.sbox.attachEvent('onblur',function(o){ns.nf(o)});
		}
		this.sbox.value=this.dftt;
		this.sbox.style.color='#999999';
	}
	
	this.cl=function(o){
		o= o.srcElement || o.target;
		if(o.value==this.dftt || o.value==''){
		o.style.color='#000000';
		o.value='';
		}
	}
	
	this.nf=function(o){
		o= o.srcElement || o.target;
		if(o.value=='' || o.value==this.dftt){
		o.style.color='#999999';
		o.value=this.dftt;
		}
	}
	
	this.tab=function(o){
	var target = o.srcElement || o.target; 
	var ti=this.tabs.getElementsByTagName('LI');
	for(var i=0;i<ti.length;i++){
		if(target==ti[i]){
			ti[i].className='thiso';
			this.selecti=i;
			}else{
			ti[i].className='';
			}
		}
	}
	
	this.go=function(e){
		this.form.action='http://'+this.dseu[this.selecti]
		this.sbox.name=this.dsen[this.selecti];
		this.form.method='get';
		this.form.target='_blank';
		if(this.sbox.value=='' || this.sbox.value==this.dftt){
		return false;
		}else{
		return true;
		this.form.submit();
		}
	}
	
	this.init();
}