asp.net(vb) 如何实现这种功能~!??高手支援!!
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function sAlert(){
var eSrc=(document.all)?window.event.srcElement:arguments[1];
var shield = document.createElement("DIV");
shield.id = "shield";
shield.style.position = "absolute";
shield.style.left = "0px";
shield.style.top = "0px";
shield.style.width = "100%";
shield.style.height = ((document.documentElement.clientHeight>document.documentElement.scrollHeight)?document.documentElement.clientHeight:document.documentElement.scrollHeight)+"px";
shield.style.background = "#333";
shield.style.textAlign = "center";
shield.style.zIndex = "10000";
shield.style.filter = "alpha(opacity=0)";
shield.style.opacity = 0;
var alertFram = document.createElement("DIV");
alertFram.id="alertFram";
alertFram.style.position = "absolute";
alertFram.style.left = "50%";
alertFram.style.top = "50%";
alertFram.style.marginLeft = "-180px" ;
alertFram.style.marginTop = "-140px";
alertFram.style.width = "360px";
alertFram.style.height = "280px";
alertFram.style.background = "#E8F0F8";
alertFram.style.zIndex = "10001";
strHtml = "<h2><span class=\"close\"><a href=\"javascript:void(null);\" onclick=\"doOk();\">X</a></span><span>Send a post</span></h2>\n";
strHtml += "<form id=\"postform\" name=\"postform\" action=\"javascript:void(null);\" onSubmit=\"post();doOk();\" method=\"post\" enctype=\"multipart/form-data\">\n";
strHtml += " <table width=\"100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" class=\"dd\">\n";
strHtml += " <tr><td width=\"70\">Nick Name:</td><td width=\"300\" height=\"22\" align=\"left\"><input name=\"Nick\" type=\"text\" id=\"Nick\" size=\"30\" /> </td></tr>\n";
strHtml += " <tr><td width=\"70\">Email:</td><td width=\"300\" height=\"22\" align=\"left\"><input name=\"Email\" type=\"text\" id=\"Email\" size=\"30\" /> </td></tr>\n";
strHtml += " <tr><td width=\"70\">HomePage:</td><td width=\"300\" height=\"22\" align=\"left\"><input name=\"HomePage\" type=\"text\" id=\"HomePage\" size=\"30\" /> </td></tr>\n";
strHtml += " <tr><td width=\"70\">Message:</td><td width=\"300\" height=\"22\" align=\"left\"><textarea name=\"Message\" id=\"Message\" cols=\"40\" rows=\"5\"></textarea> </td></tr>\n";
strHtml += "<tr><td height=\"25\" colspan=\"2\" align=\"center\"><input type=\"submit\" class=\"btn1\" name=\"Send\" id=\"Send\" value=\"Send\" /> <input type=\"reset\" name=\"Reset\" class=\"btn1\" id=\"Reset\" value=\"Reset\" /></td></tr>\n";
strHtml += "</table></form>\n";
alertFram.innerHTML = strHtml;
document.body.appendChild(alertFram);
document.body.appendChild(shield);
this.setOpacity = function(obj,opacity){
if(opacity>=1)opacity=opacity/100;
try{ obj.style.opacity=opacity; }catch(e){}
try{
if(obj.filters.length>0&&obj.filters("alpha")){
obj.filters("alpha").opacity=opacity*100;
}else{
obj.style.filter="alpha(opacity=\""+(opacity*100)+"\")";
}
}catch(e){}
}
var c = 0;
this.doAlpha = function(){
if (++c > 20){clearInterval(ad);return 0;}
setOpacity(shield,c);
}
var ad = setInterval("doAlpha()",1);
this.doOk = function(){
//alertFram.style.display = "none";
//shield.style.display = "none";
document.body.removeChild(alertFram);
document.body.removeChild(shield);
eSrc.focus();
document.body.onselectstart = function(){return true;}
document.body.oncontextmenu = function(){return true;}
}
document.getElementById("Send").focus();
eSrc.blur();
document.body.onselectstart = function(){return false;}
document.body.oncontextmenu = function(){return false;}
}
</script>
<a href="#" onclick="sAlert()">点我</a>
滴水浪流OK,很彻底~!很OK!!