flyout.js

关于430的介绍

function browserDetect()  {
	ns4 = (document.layers)&&(navigator.appName=="Netscape")&&(parseInt(navigator.appVersion)==4) ? 'ns4' : false;
	ie4 = (document.all)&&(navigator.appName.indexOf("Microsoft") > -1)&&(parseInt(navigator.appVersion)==4) ? 'ie4' : false;
	ie5 = (document.getElementById)&&(navigator.appName.indexOf("Microsoft") > -1) ? 'ie5' : false;
	ns6 = (document.getElementById)&&(navigator.appName=="Netscape")&&(parseInt(navigator.appVersion)>4) ? 'ns6' : false;
	op5 = (document.getElementById)&&(navigator.appName=="Opera")&&(parseInt(navigator.appVersion)>4) ? 'op5' : false;
	return (ns4 || ie5 || ie4 || ns6 || op5);
}
var browser = browserDetect();

function myDOM(id)  {
	if (browser == 'ns4')  {return document.layers[id];}
	if (browser == 'ie4')  {return eval('document.all.'+ id);}
	if (browser == 'ie5')  {return document.getElementById(id);}
	if (browser == 'ns6')  {return document.getElementById(id);}
	if (browser == 'op5')  {return document.getElementById(id);}
	return false;
}

function getStyle(id)  {
	if (browser == 'ns4')  
        {return myDOM(id);}
	if ((browser == 'ie4') || (browser == 'ie5') || (browser == 'ns6') || (browser == 'op5'))  
        {return myDOM(id).style;}
}

var xConst=0;
var yConst=0;
var imageName='';

function initName(strImgName){
    imageName = strImgName;
}

function initPosition() {
    imageObject = myDOM(imageName);
    if( imageObject.offsetParent ) {
        for( var posX = 0, posY = 0; imageObject.offsetParent; imageObject = imageObject.offsetParent ) {
            posX += imageObject.offsetLeft;
            posY += imageObject.offsetTop;
        }
        xConst = posX;
        yConst = posY;
    } else {
        xConst = imageObject.x;
        yConst = imageObject.y;
    }
}

function showMenuOn(index,inst,eventObject,flag,center,xpos,ypos)  {
    eventObject.offsetParent=document;
    if (document.layers){
        tempnav = 'l_'+'subnav' + index;
        if(inst > 0){
            tempnav = 'l_'+'subnav' + index +'inst'+inst;
        }                
        if(myDOM(tempnav)){
            if(flag == "true"){
                if(center == 'false'){	
                    getStyle(tempnav).left = eventObject.pageX; 
                    getStyle(tempnav).top = eventObject.pageY;
                } else {
                    initPosition();
                    getStyle(tempnav).left = xConst + xpos;	
                    getStyle(tempnav).top = yConst + ypos;	
                }
            }
            getStyle(tempnav).visibility = 'show';
        }
    } else {
        tempnav = 'd_'+'subnav' + index;
        if(inst > 0){
	      tempnav = 'd_'+'subnav' + index +'inst'+inst;
	}
        if(myDOM(tempnav))  {
            if(flag == "true"){	    
                if(center == 'false'){
	      	    if(window.navigator.appName=="Netscape"){
	    	        getStyle(tempnav).left = eventObject.pageX; 
	    	        getStyle(tempnav).top = eventObject.pageY;
	      	    } else {
 	                getStyle(tempnav).left = eventObject.x; 
	                getStyle(tempnav).top = eventObject.y + document.body.scrollTop;
	      	    }
	        } else {	      
	            initPosition();
                    getStyle(tempnav).left = xConst + xpos;	
                    getStyle(tempnav).top = yConst + ypos;	
                } 	      
	    }
	    getStyle(tempnav).visibility = 'visible';
	}
    }
}

function showMenuOff(index,inst)  
{
   if (document.layers)  {	
	   tempnav = 'l_'+'subnav' + index;
	   if(inst > 0)
	   {
	     tempnav = 'l_'+'subnav' + index +'inst'+inst;
	   }   
	   getStyle(tempnav).visibility = 'hide';
   } else {	  
	   tempnav = 'd_'+'subnav' + index;
	   if(inst > 0)
	   {
	     tempnav = 'd_'+'subnav' + index +'inst'+inst;
	   }   
	   getStyle(tempnav).visibility = 'hidden';
   }   
}

function showMenuOffNS(index,inst)  
{
   if (document.layers)  {	
	   tempnav = 'l_'+'subnav' + index;
	   if(inst > 0)
	   {
	     tempnav = 'l_'+'subnav' + index +'inst'+inst;
	   }   
	   getStyle(tempnav).visibility = 'hide';
   } else if(browser == "ns6" ){	  
	   tempnav = 'd_'+'subnav' + index;
	   if(inst > 0)
	   {
	     tempnav = 'd_'+'subnav' + index +'inst'+inst;
	   }   
	   getStyle(tempnav).visibility = 'hidden';
   }   
}