function ShowPreview()
{
var selobj=document.form1.face;
var imgobj=document.images['face'];
if(selobj.selectedIndex==0)
	{imgobj.style.visibility="hidden";}
else
	{imgobj.style.visibility="visible";
	imgobj.src="face\/img"+selobj.options[selobj.selectedIndex].value+".jpg";
	}
}

function isValidChar(str)
{
var invalidchar= ';|<>`&%,!*(~~^)@#? :"/$=\\'+"'"
for(i=0;i<str.length;i++)
 {char=str.charAt(i);
  if(char==" "){return char;}
  if(invalidchar.indexOf(char)>=0){return char;} 
 }
return "";
}

function strlength(str)
{
var l=str.length;
var teststr="同学录";
var t=l;
if (teststr.length==3){
for(i=0;i<l;i++){
		thischar=str.charCodeAt(i);		
		if(thischar>255){
		t=t+1;}
	}
}
return t;
}

function onlyNum()
{
if(!((event.keyCode>=48&&event.keyCode<=57)||(event.keyCode>=96&&event.keyCode<=105)||(event.keyCode==8)||(event.keyCode==109)||(event.keyCode==46)||(event.keyCode==189)))
event.returnValue=false;
}

function openface(){
	var newwin=window.open("face.asp","","top=0,left=0,height=530,width=790,scrollbars=yes,status=no")

}

function changeTit(){
    var titleCont=document.getElementById("titleCont");
	if(titleCont == null){
    window.document.title="沉香榭_原创小说|言情|武侠|耽美|灵异|科幻|动漫|推理|架空";
	}
	else{
	window.document.title=titleCont.innerHTML;
	}
}