javascript 常用代码大全

{
x = document.body || null;
jg_ie = x && typeof x.insertAdjacentHTML != "undefined";
jg_dom = (x && !jg_ie &&
typeof x.appendChild != "undefined" &&
typeof document.createRange != "undefined" &&
typeof (i = document.createRange()).setStartBefore != "undefined" &&
typeof i.createContextualFragment != "undefined");
jg_ihtm = !jg_ie && !jg_dom && x && typeof x.innerHTML != "undefined";
jg_fast = jg_ie && document.all && !window.opera;
jg_moz = jg_dom && typeof x.style.MozOpacity != "undefined";
}

function pntDoc()
{
this.wnd.document.write(jg_fast? this.htmRpc() : this.htm);
this.htm = '';
}

function pntCnvDom()
{
var x = document.createRange();
x.setStartBefore(this.cnv);
x = x.createContextualFragment(jg_fast? this.htmRpc() : this.htm);
this.cnv.appendChild(x);
this.htm = '';
}

function pntCnvIe()
{
this.cnv.insertAdjacentHTML("BeforeEnd", jg_fast? this.htmRpc() : this.htm);
this.htm = '';
}

function pntCnvIhtm()
{
this.cnv.innerHTML = this.htm;
this.htm = '';
}

function pntCnv()
{
this.htm = '';
}

function mkDiv(x, y, w, h)
{
this.htm = '<div style="position:absolute;'
'left:' x 'px;'
'top:' y 'px;'
'width:' w 'px;'
'height:' h 'px;'
'clip:rect(0,' w 'px,' h 'px,0);'
'background-color:' this.color
(!jg_moz? ';overflow:hidden' : '')
';"><\/div>';
}

function mkDivIe(x, y, w, h)
{
this.htm = '%%' this.color ';' x ';' y ';' w ';' h ';';
}

function mkDivPrt(x, y, w, h)
{
this.htm = '<div style="position:absolute;'
'border-left:' w 'px solid ' this.color ';'
'left:' x 'px;'
'top:' y 'px;'
'width:0px;'
'height:' h 'px;'
'clip:rect(0,' w 'px,' h 'px,0);'
'background-color:' this.color
(!jg_moz? ';overflow:hidden' : '')

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