JavaScript extension function code to make firefox support some methods of IE

JavaScript extension function code to make firefox support some methods of IE_javascript skills

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Release： 2016-05-16 18:37:29

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This paragraph enables FireFox to also support IE's innerText method

Copy the code The code is as follows:

 
function isIE(){ 
if (window.navigator.userAgent.toLowerCase().indexOf("msie")>=1) 
return true; 
else 
return false ; 
} 
if(!isIE()){ //firefox innerText define 
HTMLElement.prototype.__defineGetter__( "innerText", 
function(){ 
var anyString = ""; 
var childS = this.childNodes; 
for(var i=0; i if(childS[i].nodeType==1) 
anyString = childS[i].tagName=="BR" ? 'n' : childS[i].innerText; 
else if(childS[i].nodeType==3) 
anyString = childS[i].nodeValue ; 
} 
return anyString; 
} 
); 
HTMLElement.prototype.__defineSetter__( "innerText", 
function(sText){ 
this.textContent=sText; 
} 
); 
} 

This paragraph makes FireFox’s HTMLElement have click method (add click method to HTMLElement in Mozilla)

Copy code The code is as follows:

 
try { 
// create span element so that HTMLElement is accessible 
document.createElement('span'); 
HTMLElement.prototype.click = function () { 
if (typeof this.onclick == 'function') 
this.onclick({type: ' click'}); 
}; 
} 
catch (e) { 
// alert('click method for HTMLElement couldn't be added'); 
} 

Add onclick event to HTMLAnchorElement

Copy the code The code is as follows:

 
try { 
// create a element so that HTMLAnchorElement is accessible 
document.createElement('a'); 
HTMLElement.prototype.click = function () { 
 if (typeof this.onclick == 'function') { 
if (this.onclick({type: 'click'}) && this.href) 
window.open(this.href, this.target? this.target : '_self'); 
} 
else if (this.href) 
window.open(this.href, this.target? this.target : '_self'); 
 }; 
} 
catch (e) { 
// alert('click method for HTMLAnchorElement couldn't be added'); 
} 

Track the Enter key event

Copy code The code is as follows:

 
function captureKeys (evt ) { 
var keyCode = evt.keyCode ? evt.keyCode : 
evt.charCode ? evt.charCode : evt.which; 
if (keyCode == 13) { 
// cancel key: 
if (evt.preventDefault) { 
evt.preventDefault(); 
} 
var dq = getCookie('default-engine'); 
if( dq == null) dq = "baidu_txt"; 
submit_query( dq ); 
return false; 
} 
return true; 
} 