土壤类型有选择和添加两个分支菜单,为什么我的程序运行的时候点击任何一个对不能出现相应的对话框呢?我的程序错在哪了呢?请教高手!感谢至极啊!<img src="attachments/dvbbs/2006-5/200652321535813100.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-5/200652321535813100.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />