global.js

关于C+编程思想的课件

function GE(id){
	if (document.getElementById){
		return document.getElementById(id);
	}else if (document.all){
		return document.all[id];
	}else if (document.layers){
		return document.layers[id];
	}else{
		return null;
	}
}
function findPosX(obj){
	var curleft = 0;
	if (obj.offsetParent){
		while (obj.offsetParent){
			curleft += obj.offsetLeft
			obj = obj.offsetParent;
		}
	}
	else if (obj.x)
		curleft += obj.x;
	return curleft - document.body.scrollLeft;
}
function findPosY(obj){
	var curtop = 0;
	if (obj.offsetParent){
		while (obj.offsetParent){
			curtop += obj.offsetTop
			obj = obj.offsetParent;
		}
	}else if (obj.y){
		curtop += obj.y;
	}
	return curtop - document.body.scrollTop;;
}
String.prototype.trim =
function trim()
{
	return this.replace(/(^\s*)|(\s*$)/g, "");
}
function showcatemenu() {
	if (GE('headmenu').style.height=='' || GE('headmenu').style.height=='15px') {
		GE('headmenu').style.height = 'auto';
	} else {
		GE('headmenu').style.height = '15px';
	}
}
function schdiv(id,obj2){
	obj=GE(id);
	if(obj.style.display=='none'){
		obj2.className='heiyo2';
		obj.style.display='';
	}else{
		obj2.className='heiyo1';
		obj.style.display='none';
	}
}