overlib.js

数据库设计2．页面的设计与开发3．小结第8章在线考试系统 161 实例分析 161 1． 系统设计2．系统功能预览知识要点 167 制作步骤 168 1 ... 利用简单的HTML代码与脚本 融合而成

var o3_fixx = -1;
var o3_fixy = -1;
var o3_fgbackground = "";
var o3_bgbackground = "";
var o3_padxl = 0;
var o3_padxr = 0;
var o3_padyt = 0;
var o3_padyb = 0;
var o3_fullhtml = 0;
var o3_vpos = BELOW;
var o3_aboveheight = 0;
var o3_capicon = "";
var o3_textfont = "Verdana,Arial,Helvetica";
var o3_captionfont = "Verdana,Arial,Helvetica";
var o3_closefont = "Verdana,Arial,Helvetica";
var o3_textsize = "1";
var o3_captionsize = "1";
var o3_closesize = "1";
var o3_frame = self;
var o3_timeout = 0;
var o3_timerid = 0;
var o3_allowmove = 0;
var o3_function = Function();
var o3_delay = 0;
var o3_delayid = 0;
var o3_hauto = 0;
var o3_vauto = 0;
var o3_closeclick = 0;

var o3_css = CSSOFF;
var o3_fgclass = "";
var o3_bgclass = "";
var o3_textfontclass = "";
var o3_captionfontclass = "";
var o3_closefontclass = "";
var o3_padunit = "px";
var o3_heightunit = "px";
var o3_widthunit = "px";
var o3_textsizeunit = "px";
var o3_textdecoration = "";
var o3_textstyle = "";
var o3_textweight = "";
var o3_captionsizeunit = "px";
var o3_captiondecoration = "";
var o3_captionstyle = "";
var o3_captionweight = "";
var o3_closesizeunit = "px";
var o3_closedecoration = "";
var o3_closestyle = "";
var o3_closeweight = "";



// Display state variables
var o3_x = 0;
var o3_y = 0;
var o3_allow = 0;
var o3_showingsticky = 0;
var o3_removecounter = 0;

// Our layer
var over = null;


// Decide browser version
var ns4 = (document.layers)? true:false;
var ns6 = (document.getElementById)? true:false;
var ie4 = (document.all)? true:false;
var ie5 = false;

// Microsoft Stupidity Check(tm).
if (ie4) {
	if ((navigator.userAgent.indexOf('MSIE 5') > 0) || (navigator.userAgent.indexOf('MSIE 6') > 0)) {
		ie5 = true;
	}
	if (ns6) {
		ns6 = false;
	}
}


// Capture events, alt. diffuses the overlib function.
if ( (ns4) || (ie4) || (ns6)) {
	document.onmousemove = mouseMove
	if (ns4) document.captureEvents(Event.MOUSEMOVE)
} else {
	overlib = no_overlib;
	nd = no_overlib;
	ver3fix = true;
}


// Fake function for 3.0 users.
function no_overlib() {
	return ver3fix;
}



////////////////////////////////////////////////////////////////////////////////////
// PUBLIC FUNCTIONS
////////////////////////////////////////////////////////////////////////////////////


// overlib(arg0, ..., argN)
// Loads parameters into global runtime variables.
function overlib() {
	
	// Load defaults to runtime.
	o3_text = ol_text;
	o3_cap = ol_cap;
	o3_sticky = ol_sticky;
	o3_background = ol_background;
	o3_close = ol_close;
	o3_hpos = ol_hpos;
	o3_offsetx = ol_offsetx;
	o3_offsety = ol_offsety;
	o3_fgcolor = ol_fgcolor;
	o3_bgcolor = ol_bgcolor;
	o3_textcolor = ol_textcolor;
	o3_capcolor = ol_capcolor;
	o3_closecolor = ol_closecolor;
	o3_width = ol_width;
	o3_border = ol_border;
	o3_status = ol_status;
	o3_autostatus = ol_autostatus;
	o3_height = ol_height;
	o3_snapx = ol_snapx;
	o3_snapy = ol_snapy;
	o3_fixx = ol_fixx;
	o3_fixy = ol_fixy;
	o3_fgbackground = ol_fgbackground;
	o3_bgbackground = ol_bgbackground;
	o3_padxl = ol_padxl;
	o3_padxr = ol_padxr;
	o3_padyt = ol_padyt;
	o3_padyb = ol_padyb;
	o3_fullhtml = ol_fullhtml;
	o3_vpos = ol_vpos;
	o3_aboveheight = ol_aboveheight;
	o3_capicon = ol_capicon;
	o3_textfont = ol_textfont;
	o3_captionfont = ol_captionfont;
	o3_closefont = ol_closefont;
	o3_textsize = ol_textsize;
	o3_captionsize = ol_captionsize;
	o3_closesize = ol_closesize;
	o3_timeout = ol_timeout;
	o3_function = ol_function;
	o3_delay = ol_delay;
	o3_hauto = ol_hauto;
	o3_vauto = ol_vauto;
	o3_closeclick = ol_closeclick;
	
	o3_css = ol_css;
	o3_fgclass = ol_fgclass;
	o3_bgclass = ol_bgclass;
	o3_textfontclass = ol_textfontclass;
	o3_captionfontclass = ol_captionfontclass;
	o3_closefontclass = ol_closefontclass;
	o3_padunit = ol_padunit;
	o3_heightunit = ol_heightunit;
	o3_widthunit = ol_widthunit;
	o3_textsizeunit = ol_textsizeunit;
	o3_textdecoration = ol_textdecoration;
	o3_textstyle = ol_textstyle;
	o3_textweight = ol_textweight;
	o3_captionsizeunit = ol_captionsizeunit;
	o3_captiondecoration = ol_captiondecoration;
	o3_captionstyle = ol_captionstyle;
	o3_captionweight = ol_captionweight;
	o3_closesizeunit = ol_closesizeunit;
	o3_closedecoration = ol_closedecoration;
	o3_closestyle = ol_closestyle;
	o3_closeweight = ol_closeweight;
	

	// Special for frame support, over must be reset...
	if ( (ns4) || (ie4) || (ns6) ) {
		o3_frame = ol_frame;
		if (ns4) over = o3_frame.document.overDiv
		if (ie4) over = o3_frame.overDiv.style
		if (ns6) over = o3_frame.document.getElementById("overDiv");
	}
	
	
	// What the next argument is expected to be.
	var parsemode = -1;
	
	var ar = arguments;

	for (i = 0; i < ar.length; i++) {

		if (parsemode < 0) {
			// Arg is maintext, unless INARRAY
			if (ar[i] == INARRAY) {
				o3_text = ol_texts[ar[++i]];
			} else {
				o3_text = ar[i];
			}

			parsemode = 0;
		} else {
			// Note: NS4 doesn't like switch cases with vars.
			if (ar[i] == INARRAY) { o3_text = ol_texts[ar[++i]]; continue; }
			if (ar[i] == CAPARRAY) { o3_cap = ol_caps[ar[++i]]; continue; }
			if (ar[i] == STICKY) { o3_sticky = 1; continue; }
			if (ar[i] == BACKGROUND) { o3_background = ar[++i]; continue; }
			if (ar[i] == NOCLOSE) { o3_close = ""; continue; }
			if (ar[i] == CAPTION) { o3_cap = ar[++i]; continue; }
			if (ar[i] == CENTER || ar[i] == LEFT || ar[i] == RIGHT) { o3_hpos = ar[i]; continue; }
			if (ar[i] == OFFSETX) { o3_offsetx = ar[++i]; continue; }
			if (ar[i] == OFFSETY) { o3_offsety = ar[++i]; continue; }
			if (ar[i] == FGCOLOR) { o3_fgcolor = ar[++i]; continue; }
			if (ar[i] == BGCOLOR) { o3_bgcolor = ar[++i]; continue; }
			if (ar[i] == TEXTCOLOR) { o3_textcolor = ar[++i]; continue; }
			if (ar[i] == CAPCOLOR) { o3_capcolor = ar[++i]; continue; }
			if (ar[i] == CLOSECOLOR) { o3_closecolor = ar[++i]; continue; }
			if (ar[i] == WIDTH) { o3_width = ar[++i]; continue; }
			if (ar[i] == BORDER) { o3_border = ar[++i]; continue; }
			if (ar[i] == STATUS) { o3_status = ar[++i]; continue; }
			if (ar[i] == AUTOSTATUS) { o3_autostatus = 1; continue; }
			if (ar[i] == AUTOSTATUSCAP) { o3_autostatus = 2; continue; }
			if (ar[i] == HEIGHT) { o3_height = ar[++i]; o3_aboveheight = ar[i]; continue; } // Same param again.
			if (ar[i] == CLOSETEXT) { o3_close = ar[++i]; continue; }
			if (ar[i] == SNAPX) { o3_snapx = ar[++i]; continue; }
			if (ar[i] == SNAPY) { o3_snapy = ar[++i]; continue; }
			if (ar[i] == FIXX) { o3_fixx = ar[++i]; continue; }
			if (ar[i] == FIXY) { o3_fixy = ar[++i]; continue; }
			if (ar[i] == FGBACKGROUND) { o3_fgbackground = ar[++i]; continue; }
			if (ar[i] == BGBACKGROUND) { o3_bgbackground = ar[++i]; continue; }
			if (ar[i] == PADX) { o3_padxl = ar[++i]; o3_padxr = ar[++i]; continue; }
			if (ar[i] == PADY) { o3_padyt = ar[++i]; o3_padyb = ar[++i]; continue; }
			if (ar[i] == FULLHTML) { o3_fullhtml = 1; continue; }
			if (ar[i] == BELOW || ar[i] == ABOVE) { o3_vpos = ar[i]; continue; }
			if (ar[i] == CAPICON) { o3_capicon = ar[++i]; continue; }
			if (ar[i] == TEXTFONT) { o3_textfont = ar[++i]; continue; }
			if (ar[i] == CAPTIONFONT) { o3_captionfont = ar[++i]; continue; }
			if (ar[i] == CLOSEFONT) { o3_closefont = ar[++i]; continue; }
			if (ar[i] == TEXTSIZE) { o3_textsize = ar[++i]; continue; }
			if (ar[i] == CAPTIONSIZE) { o3_captionsize = ar[++i]; continue; }
			if (ar[i] == CLOSESIZE) { o3_closesize = ar[++i]; continue; }
			if (ar[i] == FRAME) { opt_FRAME(ar[++i]); continue; }
			if (ar[i] == TIMEOUT) { o3_timeout = ar[++i]; continue; }
			if (ar[i] == FUNCTION) { opt_FUNCTION(ar[++i]); continue; }
			if (ar[i] == DELAY) { o3_delay = ar[++i]; continue; }
			if (ar[i] == HAUTO) { o3_hauto = (o3_hauto == 0) ? 1 : 0; continue; }
			if (ar[i] == VAUTO) { o3_vauto = (o3_vauto == 0) ? 1 : 0; continue; }
			if (ar[i] == CLOSECLICK) { o3_closeclick = (o3_closeclick == 0) ? 1 : 0; continue; }
			if (ar[i] == CSSOFF) { o3_css = ar[i]; continue; }
			if (ar[i] == CSSSTYLE) { o3_css = ar[i]; continue; }
			if (ar[i] == CSSCLASS) { o3_css = ar[i]; continue; }
			if (ar[i] == FGCLASS) { o3_fgclass = ar[++i]; continue; }
			if (ar[i] == BGCLASS) { o3_bgclass = ar[++i]; continue; }
			if (ar[i] == TEXTFONTCLASS) { o3_textfontclass = ar[++i]; continue; }
			if (ar[i] == CAPTIONFONTCLASS) { o3_captionfontclass = ar[++i]; continue; }
			if (ar[i] == CLOSEFONTCLASS) { o3_closefontclass = ar[++i]; continue; }
			if (ar[i] == PADUNIT) { o3_padunit = ar[++i]; continue; }
			if (ar[i] == HEIGHTUNIT) { o3_heightunit = ar[++i]; continue; }
			if (ar[i] == WIDTHUNIT) { o3_widthunit = ar[++i]; continue; }
			if (ar[i] == TEXTSIZEUNIT) { o3_textsizeunit = ar[++i]; continue; }
			if (ar[i] == TEXTDECORATION) { o3_textdecoration = ar[++i]; continue; }
			if (ar[i] == TEXTSTYLE) { o3_textstyle = ar[++i]; continue; }
			if (ar[i] == TEXTWEIGHT) { o3_textweight = ar[++i]; continue; }
			if (ar[i] == CAPTIONSIZEUNIT) { o3_captionsizeunit = ar[++i]; continue; }
			if (ar[i] == CAPTIONDECORATION) { o3_captiondecoration = ar[++i]; continue; }
			if (ar[i] == CAPTIONSTYLE) { o3_captionstyle = ar[++i]; continue; }
			if (ar[i] == CAPTIONWEIGHT) { o3_captionweight = ar[++i]; continue; }
			if (ar[i] == CLOSESIZEUNIT) { o3_closesizeunit = ar[++i]; continue; }
			if (ar[i] == CLOSEDECORATION) { o3_closedecoration = ar[++i]; continue; }
			if (ar[i] == CLOSESTYLE) { o3_closestyle = ar[++i]; continue; }
			if (ar[i] == CLOSEWEIGHT) { o3_closeweight = ar[++i]; continue; }
		}
	}

	if (o3_delay == 0) {
		return overlib350();
	} else {
		o3_delayid = setTimeout("overlib350()", o3_delay);

		if (o3_sticky) {
			return false;
		} else {
			return true;
		}
	}
}



// Clears popups if appropriate
function nd() {
	if ( o3_removecounter >= 1 ) { o3_showingsticky = 0 };
	if ( (ns4) || (ie4) || (ns6) ) {
		if ( o3_showingsticky == 0 ) {
			o3_allowmove = 0;
			if (over != null) hideObject(over);
		} else {
			o3_removecounter++;
		}
	}
	
	return true;
}







////////////////////////////////////////////////////////////////////////////////////
// OVERLIB 3.50 FUNCTION
////////////////////////////////////////////////////////////////////////////////////


// This function decides what it is we want to display and how we want it done.
function overlib350() {

	// Make layer content
	var layerhtml;

	if (o3_background != "" || o3_fullhtml) {
		// Use background instead of box.
		layerhtml = ol_content_background(o3_text, o3_background, o3_fullhtml);
	} else {
		// They want a popup box.

		// Prepare popup background
		if (o3_fgbackground != "" && o3_css == CSSOFF) {
			o3_fgbackground = "BACKGROUND=\""+o3_fgbackground+"\"";
		}
		if (o3_bgbackground != "" && o3_css == CSSOFF) {
			o3_bgbackground = "BACKGROUND=\""+o3_bgbackground+"\"";
		}

		// Prepare popup colors
		if (o3_fgcolor != "" && o3_css == CSSOFF) {
			o3_fgcolor = "BGCOLOR=\""+o3_fgcolor+"\"";
		}
		if (o3_bgcolor != "" && o3_css == CSSOFF) {
			o3_bgcolor = "BGCOLOR=\""+o3_bgcolor+"\"";
		}

		// Prepare popup height
		if (o3_height > 0 && o3_css == CSSOFF) {
			o3_height = "HEIGHT=" + o3_height;
		} else {
			o3_height = "";
		}

		// Decide which kinda box.
		if (o3_cap == "") {
			// Plain
			layerhtml = ol_content_simple(o3_text);
		} else {
			// With caption
			if (o3_sticky) {
				// Show close text
				layerhtml = ol_content_caption(o3_text, o3_cap, o3_close);
			} else {
				// No close text
				layerhtml = ol_content_caption(o3_text, o3_cap, "");
			}
		}
	}
	
	// We want it to stick!
	if (o3_sticky) {
		o3_showingsticky = 1;
		o3_removecounter = 0;
	}
	
	// Write layer
	layerWrite(layerhtml);
	
	// Prepare status bar
	if (o3_autostatus > 0) {
		o3_status = o3_text;
		if (o3_autostatus > 1) {
			o3_status = o3_cap;
		}
	}

	// When placing the layer the first time, even stickies may be moved.
	o3_allowmove = 0;

	// Initiate a timer for timeout
	if (o3_timeout > 0) {          
		if (o3_timerid > 0) clearTimeout(o3_timerid);
		o3_timerid = setTimeout("cClick()", o3_timeout);
	}

	// Show layer
	disp(o3_status);

	// Stickies should stay where they are.	
	if (o3_sticky) {
		o3_allowmove = 0;
		return false;
	} else {
		return true;
	}
}



////////////////////////////////////////////////////////////////////////////////////