湖北职晚计算机科学与技术亲理论课教案一《网页设计》 doc height=self. inner Height i else if (ie4up)i doc width=document. body. client Width doc height=document. body. client Height dx= new Array xp=new Array (; yp= new Array amy=new Array flag=new Array r(i=0,i<no;++1) dx[]=0 // set coordinate variables xp[]=Math. random *(doc width-30)+10; //set position variables yp[]=Math. random*doc height; amy[i]=12+ Math. random(*20 l set amplitude variables amx[ i]=10+ Math. random(*40 stx[]=0.02+ Math. random(/10: / set step variables sty1=0.7+ Math. random ∥ set step variables flag[i]=(Math. random(>0.5)1: 0; if(ns4up)i ∥ set layers f(i==0){ document. write("<layer name=tdot+i+1"left="15"") document. write("top=\"15"visibility="show"><img src=\"); document. write(heart+"I"border=O\"></layer>") document. write("<layer name=l""i+"left=151") document. write("top=\"15\"visibility=l"show"><img src=l"") document. write(heart+"l"border=\o\><layer>") i else (ie4up)( if(i=0){ document. write("<div id=I"dot"+i+I"style=\"POSITION: ") document. write("absolute, Z-INDEX: "i+", VISIBILITY: " document. write"visible: TOP: 15px; LEFT: 15px; ><img src=\) document. write(heart+"I"border=\O\></div>") document. write("<div id=l dot"+i+l" style=\"POSITION: " document. write("absolute; Z-INDEX: " +1+", VISIBILITY: " document. write("visible; TOP: 15px; LEFT: 15px; \"><img src=l"); document. write(heart+"I"border=\O\></div>");湖北职院计算机科学与技术系理论课教案—《网页设计》 doc_height = self.innerHeight; } else if (ie4up) { doc_width = document.body.clientWidth; doc_height = document.body.clientHeight; } dx = new Array(); xp = new Array(); yp = new Array(); amx = new Array(); amy = new Array(); stx = new Array(); sty = new Array(); flag = new Array(); for (i = 0; i < no; ++ i) { dx[i] = 0; // set coordinate variables xp[i] = Math.random()*(doc_width-30)+10; // set position variables yp[i] = Math.random()*doc_height; amy[i] = 12+ Math.random()*20; // set amplitude variables amx[i] = 10+ Math.random()*40; stx[i] = 0.02 + Math.random()/10; // set step variables sty[i] = 0.7 + Math.random(); // set step variables flag[i] = (Math.random()>0.5)?1:0; if (ns4up) { // set layers if (i == 0) { document.write("<layer name=\"dot"+ i +"\" left=\"15\" "); document.write("top=\"15\" visibility=\"show\"><img src=\""); document.write(heart+ "\" border=\"0\"></layer>"); } else { document.write("<layer name=\"dot"+ i +"\" left=\"15\" "); document.write("top=\"15\" visibility=\"show\"><img src=\""); document.write(heart+ "\" border=\"0\"></layer>"); } } else if (ie4up) { if (i == 0) { document.write("<div id=\"dot"+ i +"\" style=\"POSITION: "); document.write("absolute; Z-INDEX: "+ i +"; VISIBILITY: "); document.write("visible; TOP: 15px; LEFT: 15px;\"><img src=\""); document.write(heart+ "\" border=\"0\"></div>"); } else { document.write("<div id=\"dot"+ i +"\" style=\"POSITION: "); document.write("absolute; Z-INDEX: "+ i +"; VISIBILITY: "); document.write("visible; TOP: 15px; LEFT: 15px;\"><img src=\""); document.write(heart+ "\" border=\"0\"></div>");