非常不错的一个javascript 类

        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
      }
      return null;
    }
};


jscc.getPageSize=function(){
    // reference lightbox (http://www.huddletogether.com/projects/lightbox/lightbox.js)
     var theWidth,theHeight;
    if (window.innerHeight&&window.scrollMaxY) {
        theWidth = window.innerWidth;
        theHeight = window.innerHeight+ window.scrollMaxY;
     } 
    else if (document.body){
        theWidth=((document.body.scrollWidth > document.body.offsetWidth)?document.body.scrollWidth : document.body.offsetWidth );
        theHeight=((document.body.scrollHeight > document.body.offsetHeight)?document.body.scrollHeight  : document.body.offsetHeight );
    }
    var winWidth ,winHeight; 
    if (self.innerHeight) {    
        winWidth = self.innerWidth;
        winHeight = self.innerHeight;
    } else if (document.documentElement && document.documentElement.clientHeight) {
        winWidth = document.documentElement.clientWidth;
        winHeight = document.documentElement.clientHeight;
    } else if (document.body) {
        winWidth = document.body.clientWidth;
        winHeight = document.body.clientHeight;
    }
    var pWidth=(theWidth>winWidth?theWidth:winWidth)
    var pHeight=(theHeight>winHeight?theHeight:winHeight)

    var yScroll;
    if (self.pageYOffset) {
        yScroll = self.pageYOffset;
    } else if (document.documentElement && document.documentElement.scrollTop){     // Explorer 6 Strict
        yScroll = document.documentElement.scrollTop;