function dathang(id)
{
LoadXmlDoc('dathang.php?id='+id,'echodathang');	
}
function doihang(hang,gia,id,p,nam)
{
	LoadXmlDoc('xml/doihang.php?hang='+hang+'&gia='+gia+'&id='+id+'&p='+p+'&nam='+nam,'products_modem');	
}

function doimodel(model,gia,id,p,nam)
{
	LoadXmlDoc('xml/doimodel.php?model='+model+'&gia='+gia+'&id='+id+'&p='+p+'&nam='+nam,'namsx');	
}
function batdautim()
{
	hang=document.getElementById('hang1').value
	model=document.getElementById('products_modem').value
	nam=document.getElementById('namsx').value
	LoadXmlDoc('xml/timkiem.php?model='+model+'&hang='+hang+'&nam='+nam,'namsx');	
}

function change_pic(id,entry)
{
	document.getElementById('main_pic').src="userfiles/products/"+id+"/"+entry	;
}
function over_menu(id,ele)
{
	set_all('menu_phu_span');	
	document.getElementById('menu_phu_'+id).style.display="block";

	padding_left=(document.body.clientWidth-998)/2;
	relative_left=tempX-padding_left;
	relative_right=document.body.clientWidth-2*padding_left-relative_left;
	
	if(relative_left<500)
	{
		document.getElementById('menu_phu_'+id).style.textAlign='left';
		document.getElementById('menu_phu_'+id).style.paddingRight='0px';
		document.getElementById('menu_phu_'+id).style.paddingLeft=relative_left/2+'px';
	}else
	{
		document.getElementById('menu_phu_'+id).style.textAlign='right';
		document.getElementById('menu_phu_'+id).style.paddingLeft='0px';
		document.getElementById('menu_phu_'+id).style.paddingRight=relative_right/2+'px';
	}
}

function set_all(className) 
  { 
	var arr = new Array(); 
	var elems = document.getElementsByTagName("*");
	for(var i = 0; i < elems.length; i++)
	{
	  var elem = elems[i];
	  var id = elem.getAttribute("id");
	  if (navigator.userAgent.indexOf("MSIE")>=0)
		{ var cls = elem.getAttribute("className");}
		else
		{ var cls = elem.getAttribute("class");	}
	  if(cls == className)
	  {
		arr[arr.length] = id;
		 elem.style.display="none";
	  }
	}
  }
  
  
function overthis(ele)
{
	ele.style.cursor = 'pointer';
	if(	ele.className == 'tab')
	{
		ele.className = 'hover_tab'
	}
} 

function outthis(ele)
{
	if(	ele.className == 'hover_tab')
	{
		ele.className = 'tab'
	}
} 

function change_tab(ele,tabele)
{
	document.getElementById('divtab').innerHTML=document.getElementById(ele).innerHTML;
	var arr = new Array(); 
	var elems = document.getElementsByTagName("*");
	for(var i = 0; i < elems.length; i++)
	{
	  var elem = elems[i];
	  var id = elem.getAttribute("id");
	  if (navigator.userAgent.indexOf("MSIE")>=0)
		{ var cls = elem.getAttribute("className");}
		else
		{ var cls = elem.getAttribute("class");	}
	  if(cls == 'current_tab')
	  {
		arr[arr.length] = id;
		 elem.className="tab";
	  }
	}
	tabele.className = 'current_tab'

}