function reloadcode()
{ 
var timenow = new Date().getTime();
document.getElementById("yzm").src ="/images/imgcode.aspx?"+ timenow;

} 

function reloadcode1()
{ 
var timenow = new Date().getTime();
document.getElementById("yzm").src ="/images/verifyCode.aspx?"+ timenow;

} 


function selcheck(o) 
{
  var objs = main.getElementsByTagName("input");
  for(var i=0; i<objs.length; i++) 
  {
    if(objs[i].type.toLowerCase() == "checkbox" )
    {
        if(o.checked == true)
        {
            objs[i].checked = true;
        }
        else
        {
            objs[i].checked = false;
        }
      
    }
  }
}

<!--Çå³ýĬÈÏÎÄ×Ö -->
   function clearDefault(el) { 
      if (el.defaultValue==el.value) el.value = "" ;
   } 

function moveOverHref(tabNumber) {		

	for (i = 1; i <=5; i++) {
        document.getElementById('tdsub_' + i).style.display = 'none';	
       }
        document.getElementById('tdsub_' + tabNumber).style.display = '';
		
}

function SubmitSearch(k)
{
    if(window.event.keyCode==13)
    {
        document.getElementById(k).focus();
        document.getElementById(k).click();
        return false;
    }
}